402738498 has 12 divisors (see below), whose sum is σ = 872600118. Its totient is φ = 134246160.

The previous prime is 402738491. The next prime is 402738521. The reversal of 402738498 is 894837204.

It can be written as a sum of positive squares in only one way, i.e., 280127169 + 122611329 = 16737^2 + 11073^2 .

It is not an unprimeable number, because it can be changed into a prime (402738491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11187163 + ... + 11187198.

Almost surely, 2^402738498 is an apocalyptic number.

402738498 is an abundant number, since it is smaller than the sum of its proper divisors (469861620).

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

402738498 is a wasteful number, since it uses less digits than its factorization.

402738498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22374369 (or 22374366 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 402738498 is about 20068.3456717289. The cubic root of 402738498 is about 738.4839291939.

The spelling of 402738498 in words is "four hundred two million, seven hundred thirty-eight thousand, four hundred ninety-eight".