253042406 has 16 divisors (see below), whose sum is σ = 389633328. Its totient is φ = 123177600.

The previous prime is 253042403. The next prime is 253042417. The reversal of 253042406 is 604240352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253042403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39761 + ... + 45683.

It is an arithmetic number, because the mean of its divisors is an integer number (24352083).

Almost surely, 2^253042406 is an apocalyptic number.

253042406 is a deficient number, since it is larger than the sum of its proper divisors (136590922).

253042406 is a wasteful number, since it uses less digits than its factorization.

253042406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6487.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 253042406 is about 15907.3066859227. The cubic root of 253042406 is about 632.5056890446.

Adding to 253042406 its reverse (604240352), we get a palindrome (857282758).

The spelling of 253042406 in words is "two hundred fifty-three million, forty-two thousand, four hundred six".