22140584 has 8 divisors (see below), whose sum is σ = 41513610. Its totient is φ = 11070288.

The previous prime is 22140581. The next prime is 22140617. The reversal of 22140584 is 48504122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 10099684 = 3470^2 + 3178^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×22140584² = 980410919722112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22140581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383779 + ... + 1383794.

Almost surely, 2^22140584 is an apocalyptic number.

It is an amenable number.

22140584 is a deficient number, since it is larger than the sum of its proper divisors (19373026).

22140584 is a wasteful number, since it uses less digits than its factorization.

22140584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767579 (or 2767575 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 22140584 is about 4705.3781994649. The cubic root of 22140584 is about 280.7995175897.

The spelling of 22140584 in words is "twenty-two million, one hundred forty thousand, five hundred eighty-four".