245744538 has 16 divisors (see below), whose sum is σ = 529296096. Its totient is φ = 75613680.

The previous prime is 245744531. The next prime is 245744549. The reversal of 245744538 is 835447542.

It is a self number, because there is not a number n which added to its sum of digits gives 245744538.

It is not an unprimeable number, because it can be changed into a prime (245744531) 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, 1575208 + ... + 1575363.

It is an arithmetic number, because the mean of its divisors is an integer number (33081006).

Almost surely, 2^245744538 is an apocalyptic number.

245744538 is an abundant number, since it is smaller than the sum of its proper divisors (283551558).

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

245744538 is a wasteful number, since it uses less digits than its factorization.

245744538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150589.

The product of its digits is 537600, while the sum is 42.

The square root of 245744538 is about 15676.2411948783. The cubic root of 245744538 is about 626.3656860955.

The spelling of 245744538 in words is "two hundred forty-five million, seven hundred forty-four thousand, five hundred thirty-eight".