245724392 has 16 divisors (see below), whose sum is σ = 487835460. Its totient is φ = 115634944.

The previous prime is 245724389. The next prime is 245724419. The reversal of 245724392 is 293427542.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 244171876 + 1552516 = 15626^2 + 1246^2 .

It is a super-3 number, since 3×245724392³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903263 + ... + 903534.

Almost surely, 2^245724392 is an apocalyptic number.

It is an amenable number.

245724392 is a deficient number, since it is larger than the sum of its proper divisors (242111068).

245724392 is a wasteful number, since it uses less digits than its factorization.

245724392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806820 (or 1806816 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 245724392 is about 15675.5986169588. The cubic root of 245724392 is about 626.3485692580.

The spelling of 245724392 in words is "two hundred forty-five million, seven hundred twenty-four thousand, three hundred ninety-two".