23942906 has 16 divisors (see below), whose sum is σ = 38913000. Its totient is φ = 11048544.

The previous prime is 23942903. The next prime is 23942911. The reversal of 23942906 is 60924932.

It can be written as a sum of positive squares in 4 ways, for example, as 21025 + 23921881 = 145^2 + 4891^2 .

It is not an unprimeable number, because it can be changed into a prime (23942903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670 + ... + 7118.

Almost surely, 2^23942906 is an apocalyptic number.

23942906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23942906 is a deficient number, since it is larger than the sum of its proper divisors (14970094).

23942906 is an equidigital number, since it uses as much as digits as its factorization.

23942906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490 (or 5464 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 23942906 is about 4893.1488838988. The cubic root of 23942906 is about 288.2209996733.

The spelling of 23942906 in words is "twenty-three million, nine hundred forty-two thousand, nine hundred six".