23920386 has 16 divisors (see below), whose sum is σ = 54675264. Its totient is φ = 6834384.

The previous prime is 23920381. The next prime is 23920387. The reversal of 23920386 is 68302932.

It is not an unprimeable number, because it can be changed into a prime (23920381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284725 + ... + 284808.

It is an arithmetic number, because the mean of its divisors is an integer number (3417204).

Almost surely, 2^23920386 is an apocalyptic number.

23920386 is an abundant number, since it is smaller than the sum of its proper divisors (30754878).

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

23920386 is a wasteful number, since it uses less digits than its factorization.

23920386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569545.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 23920386 is about 4890.8471658804. The cubic root of 23920386 is about 288.1306072348.

The spelling of 23920386 in words is "twenty-three million, nine hundred twenty thousand, three hundred eighty-six".