2631273408 has 42 divisors (see below), whose sum is σ = 7542071784. Its totient is φ = 877090944.

The previous prime is 2631273401. The next prime is 2631273479. The reversal of 2631273408 is 8043721362.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631273401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2283516 + ... + 2284667.

Almost surely, 2^2631273408 is an apocalyptic number.

It is an amenable number.

2631273408 is an abundant number, since it is smaller than the sum of its proper divisors (4910798376).

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

2631273408 is a wasteful number, since it uses less digits than its factorization.

2631273408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568201 (or 4568188 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 2631273408 is about 51295.9394884234. The cubic root of 2631273408 is about 1380.5601254881.

The spelling of 2631273408 in words is "two billion, six hundred thirty-one million, two hundred seventy-three thousand, four hundred eight".