253445974 has 8 divisors (see below), whose sum is σ = 382269888. Its totient is φ = 126022680.

The previous prime is 253445971. The next prime is 253445989. The reversal of 253445974 is 479544352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 253445974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253445971) 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, 349702 + ... + 350425.

It is an arithmetic number, because the mean of its divisors is an integer number (47783736).

Almost surely, 2^253445974 is an apocalyptic number.

253445974 is a deficient number, since it is larger than the sum of its proper divisors (128823914).

253445974 is a wasteful number, since it uses less digits than its factorization.

253445974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700310.

The product of its digits is 604800, while the sum is 43.

The square root of 253445974 is about 15919.9866205974. The cubic root of 253445974 is about 632.8417637748.

The spelling of 253445974 in words is "two hundred fifty-three million, four hundred forty-five thousand, nine hundred seventy-four".