22038957 has 6 divisors (see below), whose sum is σ = 31834062. Its totient is φ = 14692632.

The previous prime is 22038949. The next prime is 22038959. The reversal of 22038957 is 75983022.

It is a happy number.

22038957 is a `hidden beast` number, since 220 + 389 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11964681 + 10074276 = 3459^2 + 3174^2 .

It is not a de Polignac number, because 22038957 - 2³ = 22038949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22038959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1224378 + ... + 1224395.

It is an arithmetic number, because the mean of its divisors is an integer number (5305677).

Almost surely, 2^22038957 is an apocalyptic number.

It is an amenable number.

22038957 is a deficient number, since it is larger than the sum of its proper divisors (9795105).

22038957 is a wasteful number, since it uses less digits than its factorization.

22038957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448779 (or 2448776 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 22038957 is about 4694.5667531733. The cubic root of 22038957 is about 280.3692280315.

The spelling of 22038957 in words is "twenty-two million, thirty-eight thousand, nine hundred fifty-seven".