253668044 has 12 divisors (see below), whose sum is σ = 507336144. Its totient is φ = 108714864.

The previous prime is 253668043. The next prime is 253668053. The reversal of 253668044 is 440866352.

253668044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 253667989 and 253668007.

It is not an unprimeable number, because it can be changed into a prime (253668043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4529759 + ... + 4529814.

It is an arithmetic number, because the mean of its divisors is an integer number (42278012).

Almost surely, 2^253668044 is an apocalyptic number.

It is an amenable number.

253668044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

253668044 is a wasteful number, since it uses less digits than its factorization.

253668044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9059584 (or 9059582 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 253668044 is about 15926.9596596463. The cubic root of 253668044 is about 633.0265423326.

The spelling of 253668044 in words is "two hundred fifty-three million, six hundred sixty-eight thousand, forty-four".