389500980 has 48 divisors (see below), whose sum is σ = 1189750464. Its totient is φ = 94424320.

The previous prime is 389500973. The next prime is 389500987. The reversal of 389500980 is 89005983.

It is an interprime number because it is at equal distance from previous prime (389500973) and next prime (389500987).

It is a super-2 number, since 2×389500980² = 303422026841920800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389500987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294417 + ... + 295736.

It is an arithmetic number, because the mean of its divisors is an integer number (24786468).

Almost surely, 2^389500980 is an apocalyptic number.

389500980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389500980 is an abundant number, since it is smaller than the sum of its proper divisors (800249484).

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

389500980 is a wasteful number, since it uses less digits than its factorization.

389500980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590176 (or 590174 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 389500980 is about 19735.7791840099. The cubic root of 389500980 is about 730.3026080131.

The spelling of 389500980 in words is "three hundred eighty-nine million, five hundred thousand, nine hundred eighty".