16672390 has 64 divisors (see below), whose sum is σ = 36495360. Its totient is φ = 5362560.

The previous prime is 16672387. The next prime is 16672391. The reversal of 16672390 is 9327661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16672391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87195 + ... + 87385.

It is an arithmetic number, because the mean of its divisors is an integer number (570240).

Almost surely, 2^16672390 is an apocalyptic number.

16672390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16672390 is an abundant number, since it is smaller than the sum of its proper divisors (19822970).

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

16672390 is a wasteful number, since it uses less digits than its factorization.

16672390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 16672390 is about 4083.1838067861. The cubic root of 16672390 is about 255.4657130804.

The spelling of 16672390 in words is "sixteen million, six hundred seventy-two thousand, three hundred ninety".