23665434 has 32 divisors (see below), whose sum is σ = 51394560. Its totient is φ = 7221312.

The previous prime is 23665427. The next prime is 23665451. The reversal of 23665434 is 43456632.

It is a junction number, because it is equal to n+sod(n) for n = 23665395 and 23665404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8712 + ... + 11100.

It is an arithmetic number, because the mean of its divisors is an integer number (1606080).

Almost surely, 2^23665434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23665434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25697280).

23665434 is an abundant number, since it is smaller than the sum of its proper divisors (27729126).

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

23665434 is a wasteful number, since it uses less digits than its factorization.

23665434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534.

The product of its digits is 51840, while the sum is 33.

The square root of 23665434 is about 4864.7131467333. The cubic root of 23665434 is about 287.1032824420.

The spelling of 23665434 in words is "twenty-three million, six hundred sixty-five thousand, four hundred thirty-four".