375605640 has 128 divisors (see below), whose sum is σ = 1306540800. Its totient is φ = 95800320.

The previous prime is 375605621. The next prime is 375605653. The reversal of 375605640 is 46506573.

375605640 is a `hidden beast` number, since 3 + 7 + 5 + 6 + 0 + 5 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 375605595 and 375605604.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17280 + ... + 32400.

It is an arithmetic number, because the mean of its divisors is an integer number (10207350).

Almost surely, 2^375605640 is an apocalyptic number.

375605640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 375605640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653270400).

375605640 is an abundant number, since it is smaller than the sum of its proper divisors (930935160).

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

375605640 is a wasteful number, since it uses less digits than its factorization.

375605640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15164 (or 15154 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 375605640 is about 19380.5479798689. The cubic root of 375605640 is about 721.5127914710.

The spelling of 375605640 in words is "three hundred seventy-five million, six hundred five thousand, six hundred forty".