23662020 has 24 divisors (see below), whose sum is σ = 66253824. Its totient is φ = 6309856.

The previous prime is 23662019. The next prime is 23662031. The reversal of 23662020 is 2026632.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197124 + ... + 197243.

It is an arithmetic number, because the mean of its divisors is an integer number (2760576).

Almost surely, 2^23662020 is an apocalyptic number.

23662020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23662020 is an abundant number, since it is smaller than the sum of its proper divisors (42591804).

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

23662020 is a wasteful number, since it uses less digits than its factorization.

23662020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394379 (or 394377 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23662020 is about 4864.3622398008. The cubic root of 23662020 is about 287.0894758391.

Adding to 23662020 its reverse (2026632), we get a palindrome (25688652).

The spelling of 23662020 in words is "twenty-three million, six hundred sixty-two thousand, twenty".