16390374 has 64 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 3928320.

The previous prime is 16390373. The next prime is 16390391. The reversal of 16390374 is 47309361.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16390373) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4642 + ... + 7370.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^16390374 is an apocalyptic number.

16390374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16390374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22014720).

16390374 is an abundant number, since it is smaller than the sum of its proper divisors (27639066).

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

16390374 is a wasteful number, since it uses less digits than its factorization.

16390374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 16390374 is about 4048.5026861792. The cubic root of 16390374 is about 254.0171005495.

The spelling of 16390374 in words is "sixteen million, three hundred ninety thousand, three hundred seventy-four".