23908426 has 16 divisors (see below), whose sum is σ = 38403720. Its totient is φ = 11123200.

The previous prime is 23908421. The next prime is 23908439. The reversal of 23908426 is 62480932.

It can be written as a sum of positive squares in 4 ways, for example, as 21613201 + 2295225 = 4649^2 + 1515^2 .

It is a super-2 number, since 2×23908426² = 1143225667594952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 23908391 and 23908400.

It is not an unprimeable number, because it can be changed into a prime (23908421) 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 7 ways as a sum of consecutive naturals, for example, 925 + ... + 6976.

Almost surely, 2^23908426 is an apocalyptic number.

23908426 is a deficient number, since it is larger than the sum of its proper divisors (14495294).

23908426 is a wasteful number, since it uses less digits than its factorization.

23908426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8009.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 23908426 is about 4889.6243209474. The cubic root of 23908426 is about 288.0825782362.

It can be divided in two parts, 2390 and 8426, that added together give a square (10816 = 104²).

The spelling of 23908426 in words is "twenty-three million, nine hundred eight thousand, four hundred twenty-six".