375407638 has 4 divisors (see below), whose sum is σ = 563111460. Its totient is φ = 187703818.

The previous prime is 375407629. The next prime is 375407653. The reversal of 375407638 is 836704573.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 375407594 and 375407603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93851908 + ... + 93851911.

It is an arithmetic number, because the mean of its divisors is an integer number (140777865).

Almost surely, 2^375407638 is an apocalyptic number.

375407638 is a deficient number, since it is larger than the sum of its proper divisors (187703822).

375407638 is a wasteful number, since it uses less digits than its factorization.

375407638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187703821.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 375407638 is about 19375.4390401869. The cubic root of 375407638 is about 721.3859864118.

The spelling of 375407638 in words is "three hundred seventy-five million, four hundred seven thousand, six hundred thirty-eight".