253742426 has 32 divisors (see below), whose sum is σ = 440391168. Its totient is φ = 107406000.

The previous prime is 253742413. The next prime is 253742443. The reversal of 253742426 is 624247352.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572561 + ... + 573003.

It is an arithmetic number, because the mean of its divisors is an integer number (13762224).

Almost surely, 2^253742426 is an apocalyptic number.

253742426 is a deficient number, since it is larger than the sum of its proper divisors (186648742).

253742426 is a wasteful number, since it uses less digits than its factorization.

253742426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866.

The product of its digits is 80640, while the sum is 35.

The square root of 253742426 is about 15929.2945857624. The cubic root of 253742426 is about 633.0884095115.

Adding to 253742426 its reverse (624247352), we get a palindrome (877989778).

The spelling of 253742426 in words is "two hundred fifty-three million, seven hundred forty-two thousand, four hundred twenty-six".