402103578 has 16 divisors (see below), whose sum is σ = 822910176. Its totient is φ = 130917360.

The previous prime is 402103571. The next prime is 402103591. The reversal of 402103578 is 875301204.

It is not an unprimeable number, because it can be changed into a prime (402103571) 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 7 ways as a sum of consecutive naturals, for example, 779013 + ... + 779528.

It is an arithmetic number, because the mean of its divisors is an integer number (51431886).

Almost surely, 2^402103578 is an apocalyptic number.

402103578 is an abundant number, since it is smaller than the sum of its proper divisors (420806598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402103578 is a wasteful number, since it uses less digits than its factorization.

402103578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558589.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 402103578 is about 20052.5204899534. The cubic root of 402103578 is about 738.0956500903.

The spelling of 402103578 in words is "four hundred two million, one hundred three thousand, five hundred seventy-eight".