3697618240 has 28 divisors (see below), whose sum is σ = 8804954196. Its totient is φ = 1479047168.

The previous prime is 3697618229. The next prime is 3697618247. The reversal of 3697618240 is 428167963.

It can be written as a sum of positive squares in 2 ways, for example, as 971942976 + 2725675264 = 31176^2 + 52208^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3697618247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5777209 + ... + 5777848.

Almost surely, 2^3697618240 is an apocalyptic number.

It is an amenable number.

3697618240 is an abundant number, since it is smaller than the sum of its proper divisors (5107335956).

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

3697618240 is a wasteful number, since it uses less digits than its factorization.

3697618240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11555074 (or 11555064 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 3697618240 is about 60808.0442046938. The cubic root of 3697618240 is about 1546.3484267289.

The spelling of 3697618240 in words is "three billion, six hundred ninety-seven million, six hundred eighteen thousand, two hundred forty".