402274561 has 8 divisors (see below), whose sum is σ = 434532224. Its totient is φ = 370204560.

The previous prime is 402274513. The next prime is 402274583. The reversal of 402274561 is 165472204.

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

It is a cyclic number.

It is not a de Polignac number, because 402274561 - 2⁹ = 402274049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402274511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42441 + ... + 51046.

It is an arithmetic number, because the mean of its divisors is an integer number (54316528).

Almost surely, 2^402274561 is an apocalyptic number.

It is an amenable number.

402274561 is a deficient number, since it is larger than the sum of its proper divisors (32257663).

402274561 is a wasteful number, since it uses less digits than its factorization.

402274561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93831.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 402274561 is about 20056.7834160914. The cubic root of 402274561 is about 738.2002532587.

The spelling of 402274561 in words is "four hundred two million, two hundred seventy-four thousand, five hundred sixty-one".