23409836 has 24 divisors (see below), whose sum is σ = 42900480. Its totient is φ = 11163600.

The previous prime is 23409803. The next prime is 23409847. The reversal of 23409836 is 63890432.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23409796 and 23409805.

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, 7475 + ... + 10133.

It is an arithmetic number, because the mean of its divisors is an integer number (1787520).

Almost surely, 2^23409836 is an apocalyptic number.

It is an amenable number.

23409836 is a deficient number, since it is larger than the sum of its proper divisors (19490644).

23409836 is a wasteful number, since it uses less digits than its factorization.

23409836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765 (or 2763 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 23409836 is about 4838.3712135387. The cubic root of 23409836 is about 286.0659211990.

The spelling of 23409836 in words is "twenty-three million, four hundred nine thousand, eight hundred thirty-six".