253420726 has 32 divisors (see below), whose sum is σ = 419344128. Its totient is φ = 114149280.

The previous prime is 253420721. The next prime is 253420747. The reversal of 253420726 is 627024352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253420721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196881 + ... + 198163.

It is an arithmetic number, because the mean of its divisors is an integer number (13104504).

Almost surely, 2^253420726 is an apocalyptic number.

253420726 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

253420726 is a deficient number, since it is larger than the sum of its proper divisors (165923402).

253420726 is a wasteful number, since it uses less digits than its factorization.

253420726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 253420726 is about 15919.1936353573. The cubic root of 253420726 is about 632.8207487511.

The spelling of 253420726 in words is "two hundred fifty-three million, four hundred twenty thousand, seven hundred twenty-six".