22639071 has 24 divisors (see below), whose sum is σ = 37361280. Its totient is φ = 11939616.

The previous prime is 22639063. The next prime is 22639073. The reversal of 22639071 is 17093622.

It is not a de Polignac number, because 22639071 - 2³ = 22639063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22639073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360 + ... + 6738.

It is an arithmetic number, because the mean of its divisors is an integer number (1556720).

Almost surely, 2^22639071 is an apocalyptic number.

22639071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22639071 is a deficient number, since it is larger than the sum of its proper divisors (14722209).

22639071 is a wasteful number, since it uses less digits than its factorization.

22639071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415 (or 6402 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 22639071 is about 4758.0532783902. The cubic root of 22639071 is about 282.8912624823.

The spelling of 22639071 in words is "twenty-two million, six hundred thirty-nine thousand, seventy-one".