253406074 has 8 divisors (see below), whose sum is σ = 380484468. Its totient is φ = 126577920.

The previous prime is 253406053. The next prime is 253406077. The reversal of 253406074 is 470604352.

It can be written as a sum of positive squares in 2 ways, for example, as 248535225 + 4870849 = 15765^2 + 2207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (253406077) 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 3 ways as a sum of consecutive naturals, for example, 60007 + ... + 64090.

Almost surely, 2^253406074 is an apocalyptic number.

253406074 is a deficient number, since it is larger than the sum of its proper divisors (127078394).

253406074 is a wasteful number, since it uses less digits than its factorization.

253406074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125120.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 253406074 is about 15918.7334295163. The cubic root of 253406074 is about 632.8085526054.

The spelling of 253406074 in words is "two hundred fifty-three million, four hundred six thousand, seventy-four".