7400436720 has 80 divisors (see below), whose sum is σ = 23155839360. Its totient is φ = 1954999552.

The previous prime is 7400436677. The next prime is 7400436721. The reversal of 7400436720 is 276340047.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7400436721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118410 + ... + 169769.

It is an arithmetic number, because the mean of its divisors is an integer number (289447992).

Almost surely, 2^7400436720 is an apocalyptic number.

It is an amenable number.

7400436720 is an abundant number, since it is smaller than the sum of its proper divisors (15755402640).

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

7400436720 is a wasteful number, since it uses less digits than its factorization.

7400436720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288302 (or 288296 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 7400436720 is about 86025.7910164155. The cubic root of 7400436720 is about 1948.7334944922.

Adding to 7400436720 its reverse (276340047), we get a palindrome (7676776767).

The spelling of 7400436720 in words is "seven billion, four hundred million, four hundred thirty-six thousand, seven hundred twenty".