23475816 has 96 divisors (see below), whose sum is σ = 78274560. Its totient is φ = 6189696.

The previous prime is 23475787. The next prime is 23475833. The reversal of 23475816 is 61857432.

It is a super-2 number, since 2×23475816² = 1102227873731712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4761 + ... + 8343.

It is an arithmetic number, because the mean of its divisors is an integer number (815360).

Almost surely, 2^23475816 is an apocalyptic number.

23475816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23475816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39137280).

23475816 is an abundant number, since it is smaller than the sum of its proper divisors (54798744).

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

23475816 is a wasteful number, since it uses less digits than its factorization.

23475816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615 (or 3608 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 23475816 is about 4845.1848261960. The cubic root of 23475816 is about 286.3344254956.

It can be divided in two parts, 234 and 75816, that multiplied together give a square (17740944 = 4212²).

The spelling of 23475816 in words is "twenty-three million, four hundred seventy-five thousand, eight hundred sixteen".