253044468 has 18 divisors (see below), whose sum is σ = 639640274. Its totient is φ = 84348144.

The previous prime is 253044437. The next prime is 253044487. The reversal of 253044468 is 864440352.

It can be written as a sum of positive squares in only one way, i.e., 130233744 + 122810724 = 11412^2 + 11082^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7029013 = 253044468 / (2 + 5 + 3 + 0 + 4 + 4 + 4 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3514471 + ... + 3514542.

Almost surely, 2^253044468 is an apocalyptic number.

It is an amenable number.

253044468 is an abundant number, since it is smaller than the sum of its proper divisors (386595806).

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

253044468 is a wasteful number, since it uses less digits than its factorization.

253044468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7029023 (or 7029018 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 253044468 is about 15907.3714987738. The cubic root of 253044468 is about 632.5074071008.

The spelling of 253044468 in words is "two hundred fifty-three million, forty-four thousand, four hundred sixty-eight".