245724574 has 4 divisors (see below), whose sum is σ = 368586864. Its totient is φ = 122862286.

The previous prime is 245724547. The next prime is 245724581. The reversal of 245724574 is 475427542.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61431142 + ... + 61431145.

It is an arithmetic number, because the mean of its divisors is an integer number (92146716).

Almost surely, 2^245724574 is an apocalyptic number.

245724574 is a deficient number, since it is larger than the sum of its proper divisors (122862290).

245724574 is a wasteful number, since it uses less digits than its factorization.

245724574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122862289.

The product of its digits is 313600, while the sum is 40.

The square root of 245724574 is about 15675.6044221587. The cubic root of 245724574 is about 626.3487238966.

The spelling of 245724574 in words is "two hundred forty-five million, seven hundred twenty-four thousand, five hundred seventy-four".