253445384 has 64 divisors (see below), whose sum is σ = 524880000. Its totient is φ = 114193408.

The previous prime is 253445377. The next prime is 253445419. The reversal of 253445384 is 483544352.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705797 + ... + 706155.

It is an arithmetic number, because the mean of its divisors is an integer number (8201250).

Almost surely, 2^253445384 is an apocalyptic number.

It is an amenable number.

253445384 is an abundant number, since it is smaller than the sum of its proper divisors (271434616).

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

253445384 is a wasteful number, since it uses less digits than its factorization.

253445384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 586 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The square root of 253445384 is about 15919.9680904203. The cubic root of 253445384 is about 632.8412727077.

The spelling of 253445384 in words is "two hundred fifty-three million, four hundred forty-five thousand, three hundred eighty-four".