16122990 has 32 divisors (see below), whose sum is σ = 41672736. Its totient is φ = 3968640.

The previous prime is 16122983. The next prime is 16123013. The reversal of 16122990 is 9922161.

It is a happy number.

16122990 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 20281 + ... + 21060.

It is an arithmetic number, because the mean of its divisors is an integer number (1302273).

Almost surely, 2^16122990 is an apocalyptic number.

16122990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16122990 is an abundant number, since it is smaller than the sum of its proper divisors (25549746).

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

16122990 is a wasteful number, since it uses less digits than its factorization.

16122990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41364.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 16122990 is about 4015.3443189844. The cubic root of 16122990 is about 252.6282196876.

The spelling of 16122990 in words is "sixteen million, one hundred twenty-two thousand, nine hundred ninety".