23642620 has 48 divisors (see below), whose sum is σ = 52416000. Its totient is φ = 8940096.

The previous prime is 23642603. The next prime is 23642621. The reversal of 23642620 is 2624632.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23642621) by changing a digit.

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, 47131 + ... + 47629.

It is an arithmetic number, because the mean of its divisors is an integer number (1092000).

Almost surely, 2^23642620 is an apocalyptic number.

23642620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23642620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26208000).

23642620 is an abundant number, since it is smaller than the sum of its proper divisors (28773380).

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

23642620 is a wasteful number, since it uses less digits than its factorization.

23642620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 23642620 is about 4862.3677359904. The cubic root of 23642620 is about 287.0109948157.

The spelling of 23642620 in words is "twenty-three million, six hundred forty-two thousand, six hundred twenty".