38494207240 has 16 divisors (see below), whose sum is σ = 86611966380. Its totient is φ = 15397682880.

The previous prime is 38494207237. The next prime is 38494207267. The reversal of 38494207240 is 4270249483.

It can be written as a sum of positive squares in 2 ways, for example, as 37379582244 + 1114624996 = 193338^2 + 33386^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481177551 + ... + 481177630.

Almost surely, 2^38494207240 is an apocalyptic number.

It is an amenable number.

38494207240 is an abundant number, since it is smaller than the sum of its proper divisors (48117759140).

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

38494207240 is a wasteful number, since it uses less digits than its factorization.

38494207240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962355192 (or 962355188 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 38494207240 in words is "thirty-eight billion, four hundred ninety-four million, two hundred seven thousand, two hundred forty".