16389370 has 16 divisors (see below), whose sum is σ = 30129408. Its totient is φ = 6416080.

The previous prime is 16389361. The next prime is 16389383. The reversal of 16389370 is 7398361.

It is a super-2 number, since 2×16389370² = 537222897993800, which contains 22 as substring.

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, 16966 + ... + 17905.

It is an arithmetic number, because the mean of its divisors is an integer number (1883088).

Almost surely, 2^16389370 is an apocalyptic number.

16389370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16389370 is a deficient number, since it is larger than the sum of its proper divisors (13740038).

16389370 is a wasteful number, since it uses less digits than its factorization.

16389370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34925.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 16389370 is about 4048.3786878206. The cubic root of 16389370 is about 254.0119137983.

The spelling of 16389370 in words is "sixteen million, three hundred eighty-nine thousand, three hundred seventy".