2631074436 has 81 divisors (see below), whose sum is σ = 6797859159. Its totient is φ = 858046032.

The previous prime is 2631074431. The next prime is 2631074441. The reversal of 2631074436 is 6344701362.

It is a happy number.

The square root of 2631074436 is 51294.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (2631074431) and next prime (2631074441).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2631074436.

It is not an unprimeable number, because it can be changed into a prime (2631074431) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25544361 + ... + 25544463.

Almost surely, 2^2631074436 is an apocalyptic number.

2631074436 is the 51294-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2631074436

2631074436 is an abundant number, since it is smaller than the sum of its proper divisors (4166784723).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2631074436 is a wasteful number, since it uses less digits than its factorization.

2631074436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The cubic root of 2631074436 is about 1380.5253261481.

Multiplying 2631074436 by its sum of digits (36), we get a square (94718679696 = 307764²).

2631074436 divided by its sum of digits (36) gives a square (73085401 = 8549²).

Adding to 2631074436 its reverse (6344701362), we get a palindrome (8975775798).

The spelling of 2631074436 in words is "two billion, six hundred thirty-one million, seventy-four thousand, four hundred thirty-six".