23857480 has 32 divisors (see below), whose sum is σ = 53819640. Its totient is φ = 9518080.

The previous prime is 23857451. The next prime is 23857481. The reversal of 23857480 is 8475832.

It can be written as a sum of positive squares in 4 ways, for example, as 21958596 + 1898884 = 4686^2 + 1378^2 .

It is not an unprimeable number, because it can be changed into a prime (23857481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26640 + ... + 27520.

Almost surely, 2^23857480 is an apocalyptic number.

23857480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23857480 is an abundant number, since it is smaller than the sum of its proper divisors (29962160).

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

23857480 is a wasteful number, since it uses less digits than its factorization.

23857480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 23857480 is about 4884.4119400395. The cubic root of 23857480 is about 287.8778095336.

The spelling of 23857480 in words is "twenty-three million, eight hundred fifty-seven thousand, four hundred eighty".