23278396 has 24 divisors (see below), whose sum is σ = 42287616. Its totient is φ = 11200560.

The previous prime is 23278373. The next prime is 23278403. The reversal of 23278396 is 69387232.

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 7 ways as a sum of consecutive naturals, for example, 27735 + ... + 28561.

It is an arithmetic number, because the mean of its divisors is an integer number (1761984).

Almost surely, 2^23278396 is an apocalyptic number.

It is an amenable number.

23278396 is a deficient number, since it is larger than the sum of its proper divisors (19009220).

23278396 is a wasteful number, since it uses less digits than its factorization.

23278396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 23278396 is about 4824.7690100149. The cubic root of 23278396 is about 285.5295213527.

The spelling of 23278396 in words is "twenty-three million, two hundred seventy-eight thousand, three hundred ninety-six".