253976742 has 32 divisors (see below), whose sum is σ = 575048160. Its totient is φ = 83060640.

The previous prime is 253976731. The next prime is 253976747. The reversal of 253976742 is 247679352.

253976742 is a `hidden beast` number, since 2 + 539 + 76 + 7 + 42 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253976747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41509 + ... + 47232.

It is an arithmetic number, because the mean of its divisors is an integer number (17970255).

Almost surely, 2^253976742 is an apocalyptic number.

253976742 is an abundant number, since it is smaller than the sum of its proper divisors (321071418).

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

253976742 is a wasteful number, since it uses less digits than its factorization.

253976742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88805 (or 88799 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 253976742 is about 15936.6477654493. The cubic root of 253976742 is about 633.2832226896.

The spelling of 253976742 in words is "two hundred fifty-three million, nine hundred seventy-six thousand, seven hundred forty-two".