402327980 has 24 divisors (see below), whose sum is σ = 846154512. Its totient is φ = 160690112.

The previous prime is 402327979. The next prime is 402327997. The reversal of 402327980 is 89723204.

It is a self number, because there is not a number n which added to its sum of digits gives 402327980.

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 7 ways as a sum of consecutive naturals, for example, 1067 + ... + 28386.

It is an arithmetic number, because the mean of its divisors is an integer number (35256438).

Almost surely, 2^402327980 is an apocalyptic number.

It is an amenable number.

402327980 is an abundant number, since it is smaller than the sum of its proper divisors (443826532).

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

402327980 is a wasteful number, since it uses less digits than its factorization.

402327980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30145 (or 30143 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 402327980 is about 20058.1150659777. The cubic root of 402327980 is about 738.2329276042.

The spelling of 402327980 in words is "four hundred two million, three hundred twenty-seven thousand, nine hundred eighty".