305572401 has 12 divisors (see below), whose sum is σ = 449711028. Its totient is φ = 199870944.

The previous prime is 305572367. The next prime is 305572403. The reversal of 305572401 is 104275503.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 206669376 + 98903025 = 14376^2 + 9945^2 .

It is not a de Polignac number, because 305572401 - 2²² = 301378097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (305572403) 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 11 ways as a sum of consecutive naturals, for example, 319830 + ... + 320783.

It is an arithmetic number, because the mean of its divisors is an integer number (37475919).

Almost surely, 2^305572401 is an apocalyptic number.

It is an amenable number.

305572401 is a deficient number, since it is larger than the sum of its proper divisors (144138627).

305572401 is a wasteful number, since it uses less digits than its factorization.

305572401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640672 (or 640669 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 305572401 is about 17480.6293078939. The cubic root of 305572401 is about 673.5523807522.

The spelling of 305572401 in words is "three hundred five million, five hundred seventy-two thousand, four hundred one".