23007620 has 24 divisors (see below), whose sum is σ = 48502104. Its totient is φ = 9167616.

The previous prime is 23007619. The next prime is 23007631. The reversal of 23007620 is 2670032.

It can be written as a sum of positive squares in 4 ways, for example, as 861184 + 22146436 = 928^2 + 4706^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23007592 and 23007601.

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, 3464 + ... + 7616.

It is an arithmetic number, because the mean of its divisors is an integer number (2020921).

Almost surely, 2^23007620 is an apocalyptic number.

23007620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23007620 is an abundant number, since it is smaller than the sum of its proper divisors (25494484).

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

23007620 is a wasteful number, since it uses less digits than its factorization.

23007620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439 (or 4437 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 23007620 is about 4796.6258974408. The cubic root of 23007620 is about 284.4181007006.

Adding to 23007620 its reverse (2670032), we get a palindrome (25677652).

The spelling of 23007620 in words is "twenty-three million, seven thousand, six hundred twenty".