23965830 has 96 divisors (see below), whose sum is σ = 72072000. Its totient is φ = 5412096.

The previous prime is 23965819. The next prime is 23965841. The reversal of 23965830 is 3856932.

It is an interprime number because it is at equal distance from previous prime (23965819) and next prime (23965841).

It is a super-2 number, since 2×23965830² = 1148722015177800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68496 + ... + 68844.

It is an arithmetic number, because the mean of its divisors is an integer number (750750).

Almost surely, 2^23965830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23965830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36036000).

23965830 is an abundant number, since it is smaller than the sum of its proper divisors (48106170).

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

23965830 is a wasteful number, since it uses less digits than its factorization.

23965830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 23965830 is about 4895.4907823425. The cubic root of 23965830 is about 288.3129555209.

The spelling of 23965830 in words is "twenty-three million, nine hundred sixty-five thousand, eight hundred thirty".