253300340 has 24 divisors (see below), whose sum is σ = 563221512. Its totient is φ = 95360000.

The previous prime is 253300331. The next prime is 253300363. The reversal of 253300340 is 43003352.

253300340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 94439524 + 158860816 = 9718^2 + 12604^2 .

It is a super-2 number, since 2×253300340² = 128322124488231200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372161 + ... + 372840.

It is an arithmetic number, because the mean of its divisors is an integer number (23467563).

Almost surely, 2^253300340 is an apocalyptic number.

253300340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253300340 is an abundant number, since it is smaller than the sum of its proper divisors (309921172).

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

253300340 is a wasteful number, since it uses less digits than its factorization.

253300340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745027 (or 745025 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 253300340 is about 15915.4120273400. The cubic root of 253300340 is about 632.7205269757.

Adding to 253300340 its reverse (43003352), we get a palindrome (296303692).

The spelling of 253300340 in words is "two hundred fifty-three million, three hundred thousand, three hundred forty".