375640993 has 16 divisors (see below), whose sum is σ = 489525120. Its totient is φ = 279726336.

The previous prime is 375640961. The next prime is 375640997. The reversal of 375640993 is 399046573.

It is a cyclic number.

It is not a de Polignac number, because 375640993 - 2⁵ = 375640961 is a prime.

It is a super-2 number, since 2×375640993² = 282212311244052098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (375640997) 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, 119863 + ... + 122956.

It is an arithmetic number, because the mean of its divisors is an integer number (30595320).

Almost surely, 2^375640993 is an apocalyptic number.

It is an amenable number.

375640993 is a deficient number, since it is larger than the sum of its proper divisors (113884127).

375640993 is a wasteful number, since it uses less digits than its factorization.

375640993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242856.

The product of its (nonzero) digits is 612360, while the sum is 46.

The square root of 375640993 is about 19381.4600327220. The cubic root of 375640993 is about 721.5354276607.

The spelling of 375640993 in words is "three hundred seventy-five million, six hundred forty thousand, nine hundred ninety-three".