23082780 has 48 divisors (see below), whose sum is σ = 73866240. Its totient is φ = 5275968.

The previous prime is 23082751. The next prime is 23082791. The reversal of 23082780 is 8728032.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 27060 + ... + 27899.

It is an arithmetic number, because the mean of its divisors is an integer number (1538880).

Almost surely, 2^23082780 is an apocalyptic number.

23082780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23082780 is an abundant number, since it is smaller than the sum of its proper divisors (50783460).

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

23082780 is a wasteful number, since it uses less digits than its factorization.

23082780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54978 (or 54976 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 23082780 is about 4804.4541833594. The cubic root of 23082780 is about 284.7274710893.

The spelling of 23082780 in words is "twenty-three million, eighty-two thousand, seven hundred eighty".