70038440 has 32 divisors (see below), whose sum is σ = 160564680. Its totient is φ = 27485952.

The previous prime is 70038439. The next prime is 70038467. The reversal of 70038440 is 4483007.

It can be written as a sum of positive squares in 4 ways, for example, as 39413284 + 30625156 = 6278^2 + 5534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14399 + ... + 18638.

Almost surely, 2^70038440 is an apocalyptic number.

It is an amenable number.

70038440 is an abundant number, since it is smaller than the sum of its proper divisors (90526240).

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

70038440 is a wasteful number, since it uses less digits than its factorization.

70038440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33101 (or 33097 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 70038440 is about 8368.8971794377. The cubic root of 70038440 is about 412.2039553223.

The spelling of 70038440 in words is "seventy million, thirty-eight thousand, four hundred forty".