253424140 has 24 divisors (see below), whose sum is σ = 537681312. Its totient is φ = 100323840.

The previous prime is 253424123. The next prime is 253424153. The reversal of 253424140 is 41424352.

It is a happy number.

253424140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 63376 + ... + 67255.

It is an arithmetic number, because the mean of its divisors is an integer number (22403388).

Almost surely, 2^253424140 is an apocalyptic number.

253424140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253424140 is an abundant number, since it is smaller than the sum of its proper divisors (284257172).

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

253424140 is a wasteful number, since it uses less digits than its factorization.

253424140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130737 (or 130735 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 253424140 is about 15919.3008640455. The cubic root of 253424140 is about 632.8235904554.

Adding to 253424140 its reverse (41424352), we get a palindrome (294848492).

The spelling of 253424140 in words is "two hundred fifty-three million, four hundred twenty-four thousand, one hundred forty".