23782790 has 16 divisors (see below), whose sum is σ = 43001712. Its totient is φ = 9470304.

The previous prime is 23782777. The next prime is 23782793. The reversal of 23782790 is 9728732.

It is a super-2 number, since 2×23782790² = 1131242200368200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23782793) 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 7 ways as a sum of consecutive naturals, for example, 2969 + ... + 7508.

It is an arithmetic number, because the mean of its divisors is an integer number (2687607).

Almost surely, 2^23782790 is an apocalyptic number.

23782790 is a deficient number, since it is larger than the sum of its proper divisors (19218922).

23782790 is a wasteful number, since it uses less digits than its factorization.

23782790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10711.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 23782790 is about 4876.7601950475. The cubic root of 23782790 is about 287.5770782624.

The spelling of 23782790 in words is "twenty-three million, seven hundred eighty-two thousand, seven hundred ninety".