253445292 has 72 divisors (see below), whose sum is σ = 654020640. Its totient is φ = 82736640.

The previous prime is 253445287. The next prime is 253445317. The reversal of 253445292 is 292544352.

253445292 is a `hidden beast` number, since 25 + 344 + 5 + 292 = 666.

253445292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 585108 + ... + 585540.

It is an arithmetic number, because the mean of its divisors is an integer number (9083620).

Almost surely, 2^253445292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253445292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327010320).

253445292 is an abundant number, since it is smaller than the sum of its proper divisors (400575348).

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

253445292 is a wasteful number, since it uses less digits than its factorization.

253445292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 738 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 253445292 is about 15919.9652009670. The cubic root of 253445292 is about 632.8411961345.

The spelling of 253445292 in words is "two hundred fifty-three million, four hundred forty-five thousand, two hundred ninety-two".