22407813 has 16 divisors (see below), whose sum is σ = 33667200. Its totient is φ = 14726880.

The previous prime is 22407809. The next prime is 22407841. The reversal of 22407813 is 31870422.

It is not a de Polignac number, because 22407813 - 2² = 22407809 is a prime.

It is a super-3 number, since 3×22407813³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22407013) 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 15 ways as a sum of consecutive naturals, for example, 3928 + ... + 7761.

It is an arithmetic number, because the mean of its divisors is an integer number (2104200).

Almost surely, 2^22407813 is an apocalyptic number.

It is an amenable number.

22407813 is a deficient number, since it is larger than the sum of its proper divisors (11259387).

22407813 is a wasteful number, since it uses less digits than its factorization.

22407813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11769 (or 11763 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22407813 is about 4733.6891532926. The cubic root of 22407813 is about 281.9247196068.

It can be divided in two parts, 22407 and 813, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22407813 in words is "twenty-two million, four hundred seven thousand, eight hundred thirteen".