23016040 has 16 divisors (see below), whose sum is σ = 51786180. Its totient is φ = 9206400.

The previous prime is 23016017. The next prime is 23016061. The reversal of 23016040 is 4061032.

It can be written as a sum of positive squares in 2 ways, for example, as 22410756 + 605284 = 4734^2 + 778^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 287661 + ... + 287740.

Almost surely, 2^23016040 is an apocalyptic number.

23016040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23016040 is an abundant number, since it is smaller than the sum of its proper divisors (28770140).

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

23016040 is a wasteful number, since it uses less digits than its factorization.

23016040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575412 (or 575408 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23016040 is about 4797.5035174557. The cubic root of 23016040 is about 284.4527922264.

Adding to 23016040 its reverse (4061032), we get a palindrome (27077072).

The spelling of 23016040 in words is "twenty-three million, sixteen thousand, forty".