389496090 has 32 divisors (see below), whose sum is σ = 964947456. Its totient is φ = 100514880.

The previous prime is 389496047. The next prime is 389496091. The reversal of 389496090 is 90694983.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (389496091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208477 + ... + 210336.

It is an arithmetic number, because the mean of its divisors is an integer number (30154608).

Almost surely, 2^389496090 is an apocalyptic number.

389496090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

389496090 is an abundant number, since it is smaller than the sum of its proper divisors (575451366).

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

389496090 is a wasteful number, since it uses less digits than its factorization.

389496090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418854.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 389496090 is about 19735.6552969492. The cubic root of 389496090 is about 730.2995517993.

The spelling of 389496090 in words is "three hundred eighty-nine million, four hundred ninety-six thousand, ninety".