387157872 has 20 divisors (see below), whose sum is σ = 1000157960. Its totient is φ = 129052608.

The previous prime is 387157871. The next prime is 387157879. The reversal of 387157872 is 278751783.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 8065789 = 387157872 / (3 + 8 + 7 + 1 + 5 + 7 + 8 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387157871) 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, 4032847 + ... + 4032942.

It is an arithmetic number, because the mean of its divisors is an integer number (50007898).

Almost surely, 2^387157872 is an apocalyptic number.

It is an amenable number.

387157872 is an abundant number, since it is smaller than the sum of its proper divisors (613000088).

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

387157872 is a wasteful number, since it uses less digits than its factorization.

387157872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8065800 (or 8065794 counting only the distinct ones).

The product of its digits is 658560, while the sum is 48.

The square root of 387157872 is about 19676.3277061549. The cubic root of 387157872 is about 728.8352426945.

The spelling of 387157872 in words is "three hundred eighty-seven million, one hundred fifty-seven thousand, eight hundred seventy-two".