22493471 has 32 divisors (see below), whose sum is σ = 31546368. Its totient is φ = 15459840.

The previous prime is 22493467. The next prime is 22493477. The reversal of 22493471 is 17439422.

It is not a de Polignac number, because 22493471 - 2² = 22493467 is a prime.

It is a super-3 number, since 3×22493471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22493477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22535 + ... + 23511.

It is an arithmetic number, because the mean of its divisors is an integer number (985824).

Almost surely, 2^22493471 is an apocalyptic number.

22493471 is a deficient number, since it is larger than the sum of its proper divisors (9052897).

22493471 is a wasteful number, since it uses less digits than its factorization.

22493471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031.

The product of its digits is 12096, while the sum is 32.

The square root of 22493471 is about 4742.7282232909. The cubic root of 22493471 is about 282.2834992482.

The spelling of 22493471 in words is "twenty-two million, four hundred ninety-three thousand, four hundred seventy-one".