23963538 has 16 divisors (see below), whose sum is σ = 48234240. Its totient is φ = 7936656.

The previous prime is 23963507. The next prime is 23963573. The reversal of 23963538 is 83536932.

It is a junction number, because it is equal to n+sod(n) for n = 23963496 and 23963505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11778 + ... + 13661.

It is an arithmetic number, because the mean of its divisors is an integer number (3014640).

Almost surely, 2^23963538 is an apocalyptic number.

23963538 is an abundant number, since it is smaller than the sum of its proper divisors (24270702).

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

23963538 is a wasteful number, since it uses less digits than its factorization.

23963538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25601.

The product of its digits is 116640, while the sum is 39.

The square root of 23963538 is about 4895.2566837705. The cubic root of 23963538 is about 288.3037641798.

The spelling of 23963538 in words is "twenty-three million, nine hundred sixty-three thousand, five hundred thirty-eight".