253672730 has 16 divisors (see below), whose sum is σ = 456792264. Its totient is φ = 101428800.

The previous prime is 253672729. The next prime is 253672739. The reversal of 253672730 is 37276352.

It can be written as a sum of positive squares in 4 ways, for example, as 130484929 + 123187801 = 11423^2 + 11099^2 .

It is not an unprimeable number, because it can be changed into a prime (253672739) by changing a digit.

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, 47180 + ... + 52280.

Almost surely, 2^253672730 is an apocalyptic number.

253672730 is a deficient number, since it is larger than the sum of its proper divisors (203119534).

253672730 is a wasteful number, since it uses less digits than its factorization.

253672730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081.

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 253672730 is about 15927.1067680229. The cubic root of 253672730 is about 633.0304402669.

The spelling of 253672730 in words is "two hundred fifty-three million, six hundred seventy-two thousand, seven hundred thirty".