402068208 has 40 divisors (see below), whose sum is σ = 1045311568. Its totient is φ = 133166592.

The previous prime is 402068197. The next prime is 402068231. The reversal of 402068208 is 802860204.

It is a happy number.

It is a congruent number.

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, 19141 + ... + 34212.

Almost surely, 2^402068208 is an apocalyptic number.

402068208 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

402068208 is an abundant number, since it is smaller than the sum of its proper divisors (643243360).

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

402068208 is a wasteful number, since it uses less digits than its factorization.

402068208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53521 (or 53515 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 402068208 is about 20051.6385365386. The cubic root of 402068208 is about 738.0740078982.

The spelling of 402068208 in words is "four hundred two million, sixty-eight thousand, two hundred eight".