253442870 has 16 divisors (see below), whose sum is σ = 459481680. Its totient is φ = 100647264.

The previous prime is 253442869. The next prime is 253442899. The reversal of 253442870 is 78244352.

It is a self number, because there is not a number n which added to its sum of digits gives 253442870.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89777 + ... + 92556.

It is an arithmetic number, because the mean of its divisors is an integer number (28717605).

Almost surely, 2^253442870 is an apocalyptic number.

253442870 is a deficient number, since it is larger than the sum of its proper divisors (206038810).

253442870 is a wasteful number, since it uses less digits than its factorization.

253442870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182479.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 253442870 is about 15919.8891327798. The cubic root of 253442870 is about 632.8391802540.

The spelling of 253442870 in words is "two hundred fifty-three million, four hundred forty-two thousand, eight hundred seventy".