386021472 has 48 divisors (see below), whose sum is σ = 1032438960. Its totient is φ = 126244352.

The previous prime is 386021459. The next prime is 386021473. The reversal of 386021472 is 274120683.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386021473) 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, 32847 + ... + 43022.

It is an arithmetic number, because the mean of its divisors is an integer number (21509145).

Almost surely, 2^386021472 is an apocalyptic number.

386021472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

386021472 is an abundant number, since it is smaller than the sum of its proper divisors (646417488).

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

386021472 is a wasteful number, since it uses less digits than its factorization.

386021472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75935 (or 75927 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 386021472 is about 19647.4291448016. The cubic root of 386021472 is about 728.1214425265.

The spelling of 386021472 in words is "three hundred eighty-six million, twenty-one thousand, four hundred seventy-two".