401782002 has 16 divisors (see below), whose sum is σ = 809346720. Its totient is φ = 132963552.

The previous prime is 401781983. The next prime is 401782013. The reversal of 401782002 is 200287104.

It is a super-2 number, since 2×401782002² = 322857554262256008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240043 + ... + 241710.

It is an arithmetic number, because the mean of its divisors is an integer number (50584170).

Almost surely, 2^401782002 is an apocalyptic number.

401782002 is an abundant number, since it is smaller than the sum of its proper divisors (407564718).

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

401782002 is a wasteful number, since it uses less digits than its factorization.

401782002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481897.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 401782002 is about 20044.5005425428. The cubic root of 401782002 is about 737.8988374934.

The spelling of 401782002 in words is "four hundred one million, seven hundred eighty-two thousand, two".