23277240 has 128 divisors (see below), whose sum is σ = 88704000. Its totient is φ = 5318784.

The previous prime is 23277239. The next prime is 23277257. The reversal of 23277240 is 4277232.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 6021 + ... + 9099.

It is an arithmetic number, because the mean of its divisors is an integer number (693000).

Almost surely, 2^23277240 is an apocalyptic number.

23277240 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 23277240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44352000).

23277240 is an abundant number, since it is smaller than the sum of its proper divisors (65426760).

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

23277240 is a wasteful number, since it uses less digits than its factorization.

23277240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106 (or 3096 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 23277240 is about 4824.6492100463. The cubic root of 23277240 is about 285.5247948302.

The spelling of 23277240 in words is "twenty-three million, two hundred seventy-seven thousand, two hundred forty".