16098978 has 32 divisors (see below), whose sum is σ = 37699200. Its totient is φ = 4487040.

The previous prime is 16098941. The next prime is 16098991. The reversal of 16098978 is 87989061.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2953 + ... + 6396.

It is an arithmetic number, because the mean of its divisors is an integer number (1178100).

Almost surely, 2^16098978 is an apocalyptic number.

16098978 is an abundant number, since it is smaller than the sum of its proper divisors (21600222).

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

16098978 is a wasteful number, since it uses less digits than its factorization.

16098978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9402.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 16098978 is about 4012.3531748838. The cubic root of 16098978 is about 252.5027441456.

The spelling of 16098978 in words is "sixteen million, ninety-eight thousand, nine hundred seventy-eight".