23526420 has 48 divisors (see below), whose sum is σ = 66187968. Its totient is φ = 6243840.

The previous prime is 23526409. The next prime is 23526469. The reversal of 23526420 is 2462532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13647 + ... + 15273.

It is an arithmetic number, because the mean of its divisors is an integer number (1378916).

Almost surely, 2^23526420 is an apocalyptic number.

23526420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23526420 is an abundant number, since it is smaller than the sum of its proper divisors (42661548).

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

23526420 is a wasteful number, since it uses less digits than its factorization.

23526420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 23526420 is about 4850.4041068760. The cubic root of 23526420 is about 286.5400167660.

Adding to 23526420 its reverse (2462532), we get a palindrome (25988952).

The spelling of 23526420 in words is "twenty-three million, five hundred twenty-six thousand, four hundred twenty".