402274002578 has 54 divisors (see below), whose sum is σ = 711802392903. Its totient is φ = 170010935640.

The previous prime is 402274002577. The next prime is 402274002583. The reversal of 402274002578 is 875200472204.

It can be written as a sum of positive squares in only one way, i.e., 201137001289 + 201137001289 = 448483^2 + 448483^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=448483.

It is not an unprimeable number, because it can be changed into a prime (402274002577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 496021793 + ... + 496022603.

Almost surely, 2^402274002578 is an apocalyptic number.

402274002578 is a deficient number, since it is larger than the sum of its proper divisors (309528390325).

402274002578 is an frugal number, since it uses more digits than its factorization.

402274002578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 41.

The spelling of 402274002578 in words is "four hundred two billion, two hundred seventy-four million, two thousand, five hundred seventy-eight".