24393994 has 4 divisors (see below), whose sum is σ = 36590994. Its totient is φ = 12196996.

The previous prime is 24393983. The next prime is 24394001. The reversal of 24393994 is 49939342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23882769 + 511225 = 4887^2 + 715^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 24393994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6098497 + ... + 6098500.

Almost surely, 2^24393994 is an apocalyptic number.

24393994 is a deficient number, since it is larger than the sum of its proper divisors (12197000).

24393994 is a wasteful number, since it uses less digits than its factorization.

24393994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12196999.

The product of its digits is 209952, while the sum is 43.

The square root of 24393994 is about 4939.0276370962. The cubic root of 24393994 is about 290.0197925453.

The spelling of 24393994 in words is "twenty-four million, three hundred ninety-three thousand, nine hundred ninety-four".