22513488 has 20 divisors (see below), whose sum is σ = 58159968. Its totient is φ = 7504480.

The previous prime is 22513487. The next prime is 22513507. The reversal of 22513488 is 88431522.

It is a super-3 number, since 3×22513488³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22513487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234468 + ... + 234563.

Almost surely, 2^22513488 is an apocalyptic number.

It is an amenable number.

22513488 is an abundant number, since it is smaller than the sum of its proper divisors (35646480).

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

22513488 is a wasteful number, since it uses less digits than its factorization.

22513488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469042 (or 469036 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 22513488 is about 4744.8380372780. The cubic root of 22513488 is about 282.3672093688.

The spelling of 22513488 in words is "twenty-two million, five hundred thirteen thousand, four hundred eighty-eight".