23405394 has 16 divisors (see below), whose sum is σ = 47249568. Its totient is φ = 7728672.

The previous prime is 23405387. The next prime is 23405401. The reversal of 23405394 is 49350432.

It is an interprime number because it is at equal distance from previous prime (23405387) and next prime (23405401).

It is an unprimeable number.

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, 17587 + ... + 18870.

It is an arithmetic number, because the mean of its divisors is an integer number (2953098).

Almost surely, 2^23405394 is an apocalyptic number.

23405394 is an abundant number, since it is smaller than the sum of its proper divisors (23844174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23405394 is a wasteful number, since it uses less digits than its factorization.

23405394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36569.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 23405394 is about 4837.9121529850. The cubic root of 23405394 is about 286.0478264517.

The spelling of 23405394 in words is "twenty-three million, four hundred five thousand, three hundred ninety-four".