385971972 has 24 divisors (see below), whose sum is σ = 905637600. Its totient is φ = 127937856.

The previous prime is 385971967. The next prime is 385971977. The reversal of 385971972 is 279179583.

It is an interprime number because it is at equal distance from previous prime (385971967) and next prime (385971977).

It is not an unprimeable number, because it can be changed into a prime (385971977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87697 + ... + 91992.

It is an arithmetic number, because the mean of its divisors is an integer number (37734900).

Almost surely, 2^385971972 is an apocalyptic number.

It is an amenable number.

385971972 is an abundant number, since it is smaller than the sum of its proper divisors (519665628).

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

385971972 is a wasteful number, since it uses less digits than its factorization.

385971972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179875 (or 179873 counting only the distinct ones).

The product of its digits is 952560, while the sum is 51.

The square root of 385971972 is about 19646.1693976205. The cubic root of 385971972 is about 728.0903185652.

The spelling of 385971972 in words is "three hundred eighty-five million, nine hundred seventy-one thousand, nine hundred seventy-two".