23333780 has 24 divisors (see below), whose sum is σ = 49927752. Its totient is φ = 9156992.

The previous prime is 23333773. The next prime is 23333803. The reversal of 23333780 is 8733332.

It can be written as a sum of positive squares in 4 ways, for example, as 6061444 + 17272336 = 2462^2 + 4156^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9947 + ... + 12066.

It is an arithmetic number, because the mean of its divisors is an integer number (2080323).

Almost surely, 2^23333780 is an apocalyptic number.

23333780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23333780 is an abundant number, since it is smaller than the sum of its proper divisors (26593972).

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

23333780 is a wasteful number, since it uses less digits than its factorization.

23333780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22075 (or 22073 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 23333780 is about 4830.5051495677. The cubic root of 23333780 is about 285.7557861146.

The spelling of 23333780 in words is "twenty-three million, three hundred thirty-three thousand, seven hundred eighty".