23725820 has 12 divisors (see below), whose sum is σ = 49824264. Its totient is φ = 9490320.

The previous prime is 23725817. The next prime is 23725837. The reversal of 23725820 is 2852732.

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 3 ways as a sum of consecutive naturals, for example, 593126 + ... + 593165.

It is an arithmetic number, because the mean of its divisors is an integer number (4152022).

Almost surely, 2^23725820 is an apocalyptic number.

23725820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23725820 is an abundant number, since it is smaller than the sum of its proper divisors (26098444).

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

23725820 is a wasteful number, since it uses less digits than its factorization.

23725820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186300 (or 1186298 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 23725820 is about 4870.9157249946. The cubic root of 23725820 is about 287.3472711170.

It can be divided in two parts, 2372 and 5820, that added together give a 13-th power (8192 = 2¹³).

The spelling of 23725820 in words is "twenty-three million, seven hundred twenty-five thousand, eight hundred twenty".