23249778 has 32 divisors (see below), whose sum is σ = 49735296. Its totient is φ = 7219968.

The previous prime is 23249777. The next prime is 23249789. The reversal of 23249778 is 87794232.

It is not an unprimeable number, because it can be changed into a prime (23249777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9400 + ... + 11612.

It is an arithmetic number, because the mean of its divisors is an integer number (1554228).

Almost surely, 2^23249778 is an apocalyptic number.

23249778 is an abundant number, since it is smaller than the sum of its proper divisors (26485518).

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

23249778 is a wasteful number, since it uses less digits than its factorization.

23249778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338.

The product of its digits is 169344, while the sum is 42.

The square root of 23249778 is about 4821.8023601139. The cubic root of 23249778 is about 285.4124652539.

The spelling of 23249778 in words is "twenty-three million, two hundred forty-nine thousand, seven hundred seventy-eight".