253420342 has 16 divisors (see below), whose sum is σ = 434674080. Its totient is φ = 108548928.

The previous prime is 253420339. The next prime is 253420351. The reversal of 253420342 is 243024352.

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, 29658 + ... + 37234.

It is an arithmetic number, because the mean of its divisors is an integer number (27167130).

Almost surely, 2^253420342 is an apocalyptic number.

253420342 is a deficient number, since it is larger than the sum of its proper divisors (181253738).

253420342 is a wasteful number, since it uses less digits than its factorization.

253420342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9975.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 253420342 is about 15919.1815744403. The cubic root of 253420342 is about 632.8204291202.

Adding to 253420342 its reverse (243024352), we get a palindrome (496444694).

The spelling of 253420342 in words is "two hundred fifty-three million, four hundred twenty thousand, three hundred forty-two".