402398214 has 16 divisors (see below), whose sum is σ = 823513152. Its totient is φ = 131013288.

The previous prime is 402398201. The next prime is 402398221. The reversal of 402398214 is 412893204.

It is a congruent number.

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, 779584 + ... + 780099.

It is an arithmetic number, because the mean of its divisors is an integer number (51469572).

Almost surely, 2^402398214 is an apocalyptic number.

402398214 is an abundant number, since it is smaller than the sum of its proper divisors (421114938).

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

402398214 is a wasteful number, since it uses less digits than its factorization.

402398214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559731.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 402398214 is about 20059.8657522926. The cubic root of 402398214 is about 738.2758826369.

The spelling of 402398214 in words is "four hundred two million, three hundred ninety-eight thousand, two hundred fourteen".