389747946 has 32 divisors (see below), whose sum is σ = 891439488. Its totient is φ = 111283200.

The previous prime is 389747929. The next prime is 389747951. The reversal of 389747946 is 649747983.

It is a super-2 number, since 2×389747946² = 303806922822437832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115986 + ... + 119298.

It is an arithmetic number, because the mean of its divisors is an integer number (27857484).

Almost surely, 2^389747946 is an apocalyptic number.

389747946 is an abundant number, since it is smaller than the sum of its proper divisors (501691542).

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

389747946 is a wasteful number, since it uses less digits than its factorization.

389747946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126.

The product of its digits is 9144576, while the sum is 57.

The square root of 389747946 is about 19742.0350014886. The cubic root of 389747946 is about 730.4569266730.

The spelling of 389747946 in words is "three hundred eighty-nine million, seven hundred forty-seven thousand, nine hundred forty-six".