23782090 has 16 divisors (see below), whose sum is σ = 42940872. Its totient is φ = 9483264.

The previous prime is 23782079. The next prime is 23782127. The reversal of 23782090 is 9028732.

It can be written as a sum of positive squares in 4 ways, for example, as 22819729 + 962361 = 4777^2 + 981^2 .

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 7 ways as a sum of consecutive naturals, for example, 159 + ... + 6898.

Almost surely, 2^23782090 is an apocalyptic number.

23782090 is a deficient number, since it is larger than the sum of its proper divisors (19158782).

23782090 is a wasteful number, since it uses less digits than its factorization.

23782090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 23782090 is about 4876.6884255609. The cubic root of 23782090 is about 287.5742568114.

The spelling of 23782090 in words is "twenty-three million, seven hundred eighty-two thousand, ninety".