402498371 has 4 divisors (see below), whose sum is σ = 439089144. Its totient is φ = 365907600.

The previous prime is 402498331. The next prime is 402498391. The reversal of 402498371 is 173894204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402498371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402498301) 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, 18295370 + ... + 18295391.

It is an arithmetic number, because the mean of its divisors is an integer number (109772286).

Almost surely, 2^402498371 is an apocalyptic number.

402498371 is a deficient number, since it is larger than the sum of its proper divisors (36590773).

402498371 is a wasteful number, since it uses less digits than its factorization.

402498371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36590772.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 402498371 is about 20062.3620493700. The cubic root of 402498371 is about 738.3371298965.

The spelling of 402498371 in words is "four hundred two million, four hundred ninety-eight thousand, three hundred seventy-one".