16290390 has 32 divisors (see below), whose sum is σ = 39315456. Its totient is φ = 4319840.

The previous prime is 16290389. The next prime is 16290401. The reversal of 16290390 is 9309261.

16290390 is digitally balanced in base 2, because in such base 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, 4309 + ... + 7151.

It is an arithmetic number, because the mean of its divisors is an integer number (1228608).

Almost surely, 2^16290390 is an apocalyptic number.

16290390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16290390 is an abundant number, since it is smaller than the sum of its proper divisors (23025066).

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

16290390 is a wasteful number, since it uses less digits than its factorization.

16290390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 16290390 is about 4036.1355279524. The cubic root of 16290390 is about 253.4995312169.

The spelling of 16290390 in words is "sixteen million, two hundred ninety thousand, three hundred ninety".