389491270 has 16 divisors (see below), whose sum is σ = 801239328. Its totient is φ = 133539840.

The previous prime is 389491259. The next prime is 389491309. The reversal of 389491270 is 72194983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2782011 + ... + 2782150.

It is an arithmetic number, because the mean of its divisors is an integer number (50077458).

Almost surely, 2^389491270 is an apocalyptic number.

389491270 is an abundant number, since it is smaller than the sum of its proper divisors (411748058).

389491270 is a wasteful number, since it uses less digits than its factorization.

389491270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564175.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 389491270 is about 19735.5331825619. The cubic root of 389491270 is about 730.2965393101.

The spelling of 389491270 in words is "three hundred eighty-nine million, four hundred ninety-one thousand, two hundred seventy".