253498388 has 36 divisors (see below), whose sum is σ = 525139860. Its totient is φ = 106360320.

The previous prime is 253498381. The next prime is 253498403. The reversal of 253498388 is 883894352.

It can be written as a sum of positive squares in 2 ways, for example, as 155052304 + 98446084 = 12452^2 + 9922^2 .

It is a super-2 number, since 2×253498388² = 128522865437197088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253498381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13853 + ... + 26436.

Almost surely, 2^253498388 is an apocalyptic number.

It is an amenable number.

253498388 is an abundant number, since it is smaller than the sum of its proper divisors (271641472).

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

253498388 is a wasteful number, since it uses less digits than its factorization.

253498388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40328 (or 40315 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The square root of 253498388 is about 15921.6327052222. The cubic root of 253498388 is about 632.8853858025.

The spelling of 253498388 in words is "two hundred fifty-three million, four hundred ninety-eight thousand, three hundred eighty-eight".