23749620 has 96 divisors (see below), whose sum is σ = 71124480. Its totient is φ = 5904000.

The previous prime is 23749591. The next prime is 23749633. The reversal of 23749620 is 2694732.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94495 + ... + 94745.

It is an arithmetic number, because the mean of its divisors is an integer number (740880).

Almost surely, 2^23749620 is an apocalyptic number.

23749620 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 23749620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35562240).

23749620 is an abundant number, since it is smaller than the sum of its proper divisors (47374860).

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

23749620 is a wasteful number, since it uses less digits than its factorization.

23749620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 23749620 is about 4873.3581850712. The cubic root of 23749620 is about 287.4433208998.

The spelling of 23749620 in words is "twenty-three million, seven hundred forty-nine thousand, six hundred twenty".