375390640 has 20 divisors (see below), whose sum is σ = 872783424. Its totient is φ = 150156224.

The previous prime is 375390637. The next prime is 375390643. The reversal of 375390640 is 46093573.

It is an interprime number because it is at equal distance from previous prime (375390637) and next prime (375390643).

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 375390640.

It is not an unprimeable number, because it can be changed into a prime (375390643) 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, 2346112 + ... + 2346271.

Almost surely, 2^375390640 is an apocalyptic number.

It is an amenable number.

375390640 is an abundant number, since it is smaller than the sum of its proper divisors (497392784).

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

375390640 is a wasteful number, since it uses less digits than its factorization.

375390640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4692396 (or 4692390 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 375390640 is about 19375.0003870968. Note that the first 3 decimals coincide. The cubic root of 375390640 is about 721.3750984215.

The spelling of 375390640 in words is "three hundred seventy-five million, three hundred ninety thousand, six hundred forty".