22408957 has 2 divisors, whose sum is σ = 22408958. Its totient is φ = 22408956.

The previous prime is 22408951. The next prime is 22408963. The reversal of 22408957 is 75980422.

It is a balanced prime because it is at equal distance from previous prime (22408951) and next prime (22408963).

It can be written as a sum of positive squares in only one way, i.e., 19236996 + 3171961 = 4386^2 + 1781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22408957 is a prime.

It is a super-2 number, since 2×22408957² = 1004322707655698, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22408951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11204478 + 11204479.

It is an arithmetic number, because the mean of its divisors is an integer number (11204479).

Almost surely, 2^22408957 is an apocalyptic number.

It is an amenable number.

22408957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22408957 is an equidigital number, since it uses as much as digits as its factorization.

22408957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 22408957 is about 4733.8099877372. The cubic root of 22408957 is about 281.9295172844.

The spelling of 22408957 in words is "twenty-two million, four hundred eight thousand, nine hundred fifty-seven".