253420766 has 8 divisors (see below), whose sum is σ = 381221400. Its totient is φ = 126346968.

The previous prime is 253420747. The next prime is 253420771. The reversal of 253420766 is 667024352.

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

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 3 ways as a sum of consecutive naturals, for example, 180836 + ... + 182231.

It is an arithmetic number, because the mean of its divisors is an integer number (47652675).

Almost surely, 2^253420766 is an apocalyptic number.

253420766 is a deficient number, since it is larger than the sum of its proper divisors (127800634).

253420766 is a wasteful number, since it uses less digits than its factorization.

253420766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363418.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 253420766 is about 15919.1948917023. The cubic root of 253420766 is about 632.8207820460.

The spelling of 253420766 in words is "two hundred fifty-three million, four hundred twenty thousand, seven hundred sixty-six".