22531486 has 8 divisors (see below), whose sum is σ = 33939360. Its totient is φ = 11218368.

The previous prime is 22531433. The next prime is 22531489. The reversal of 22531486 is 68413522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22531486² = 1015335722736392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22531489) 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, 23091 + ... + 24046.

It is an arithmetic number, because the mean of its divisors is an integer number (4242420).

Almost surely, 2^22531486 is an apocalyptic number.

22531486 is a deficient number, since it is larger than the sum of its proper divisors (11407874).

22531486 is a wasteful number, since it uses less digits than its factorization.

22531486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47378.

The product of its digits is 11520, while the sum is 31.

The square root of 22531486 is about 4746.7342457736. The cubic root of 22531486 is about 282.4424337763.

The spelling of 22531486 in words is "twenty-two million, five hundred thirty-one thousand, four hundred eighty-six".