402041808 has 120 divisors (see below), whose sum is σ = 1305307328. Its totient is φ = 113135616.

The previous prime is 402041797. The next prime is 402041833. The reversal of 402041808 is 808140204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64560 + ... + 70512.

Almost surely, 2^402041808 is an apocalyptic number.

402041808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402041808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652653664).

402041808 is an abundant number, since it is smaller than the sum of its proper divisors (903265520).

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

402041808 is a wasteful number, since it uses less digits than its factorization.

402041808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041 (or 6032 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 402041808 is about 20050.9802254154. The cubic root of 402041808 is about 738.0578534416.

The spelling of 402041808 in words is "four hundred two million, forty-one thousand, eight hundred eight".