389270492 has 24 divisors (see below), whose sum is σ = 765524256. Its totient is φ = 171851328.

The previous prime is 389270489. The next prime is 389270507. The reversal of 389270492 is 294072983.

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, 161543 + ... + 163934.

It is an arithmetic number, because the mean of its divisors is an integer number (31896844).

Almost surely, 2^389270492 is an apocalyptic number.

It is an amenable number.

389270492 is a deficient number, since it is larger than the sum of its proper divisors (376253764).

389270492 is a wasteful number, since it uses less digits than its factorization.

389270492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325517 (or 325515 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 389270492 is about 19729.9389760840. The cubic root of 389270492 is about 730.1585269029.

It can be divided in two parts, 38 and 9270492, that multiplied together give a triangular number (352278696 = T₂₆₅₄₃).

The spelling of 389270492 in words is "three hundred eighty-nine million, two hundred seventy thousand, four hundred ninety-two".