23390016 has 56 divisors (see below), whose sum is σ = 66653664. Its totient is φ = 7196160.

The previous prime is 23390009. The next prime is 23390021. The reversal of 23390016 is 61009332.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2190 + ... + 7181.

It is an arithmetic number, because the mean of its divisors is an integer number (1190244).

Almost surely, 2^23390016 is an apocalyptic number.

23390016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23390016 is an abundant number, since it is smaller than the sum of its proper divisors (43263648).

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

23390016 is a wasteful number, since it uses less digits than its factorization.

23390016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9399 (or 9389 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 23390016 is about 4836.3225698872. The cubic root of 23390016 is about 285.9851655794.

Adding to 23390016 its reverse (61009332), we get a palindrome (84399348).

The spelling of 23390016 in words is "twenty-three million, three hundred ninety thousand, sixteen".