402203840 has 28 divisors (see below), whose sum is σ = 957748656. Its totient is φ = 160881408.

The previous prime is 402203839. The next prime is 402203849. The reversal of 402203840 is 48302204.

It is not an unprimeable number, because it can be changed into a prime (402203849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628124 + ... + 628763.

Almost surely, 2^402203840 is an apocalyptic number.

402203840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402203840 is an abundant number, since it is smaller than the sum of its proper divisors (555544816).

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

402203840 is a wasteful number, since it uses less digits than its factorization.

402203840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256904 (or 1256894 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 402203840 is about 20055.0203191121. The cubic root of 402203840 is about 738.1569914961.

The spelling of 402203840 in words is "four hundred two million, two hundred three thousand, eight hundred forty".