16198390 has 32 divisors (see below), whose sum is σ = 32006016. Its totient is φ = 5865600.

The previous prime is 16198387. The next prime is 16198423. The reversal of 16198390 is 9389161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5715 + ... + 8065.

It is an arithmetic number, because the mean of its divisors is an integer number (1000188).

Almost surely, 2^16198390 is an apocalyptic number.

16198390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16198390 is a deficient number, since it is larger than the sum of its proper divisors (15807626).

16198390 is a wasteful number, since it uses less digits than its factorization.

16198390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 16198390 is about 4024.7223506722. The cubic root of 16198390 is about 253.0214170499.

The spelling of 16198390 in words is "sixteen million, one hundred ninety-eight thousand, three hundred ninety".