402198972393 has 8 divisors (see below), whose sum is σ = 540123320800. Its totient is φ = 266203636128.

The previous prime is 402198972347. The next prime is 402198972401. The reversal of 402198972393 is 393279891204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-402198972393 is a prime.

It is a super-2 number, since 2×402198972393² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402198972313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482252548 + ... + 482253381.

It is an arithmetic number, because the mean of its divisors is an integer number (67515415100).

Almost surely, 2^402198972393 is an apocalyptic number.

It is an amenable number.

402198972393 is a deficient number, since it is larger than the sum of its proper divisors (137924348407).

402198972393 is a wasteful number, since it uses less digits than its factorization.

402198972393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964506071.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 402198972393 in words is "four hundred two billion, one hundred ninety-eight million, nine hundred seventy-two thousand, three hundred ninety-three".