253793898 has 40 divisors (see below), whose sum is σ = 573075360. Its totient is φ = 83945160.

The previous prime is 253793893. The next prime is 253793909. The reversal of 253793898 is 898397352.

It is a happy number.

253793898 is a `hidden beast` number, since 253 + 7 + 9 + 389 + 8 = 666.

It is a super-2 number, since 2×253793898² = 128822685324068808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (253793893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15243 + ... + 27201.

It is an arithmetic number, because the mean of its divisors is an integer number (14326884).

Almost surely, 2^253793898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253793898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286537680).

253793898 is an abundant number, since it is smaller than the sum of its proper divisors (319281462).

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

253793898 is a wasteful number, since it uses less digits than its factorization.

253793898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12104 (or 12095 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 253793898 is about 15930.9101434915. The cubic root of 253793898 is about 633.1312142354.

The spelling of 253793898 in words is "two hundred fifty-three million, seven hundred ninety-three thousand, eight hundred ninety-eight".