402201820692 has 72 divisors (see below), whose sum is σ = 1166545703232. Its totient is φ = 114456960000.

The previous prime is 402201820687. The next prime is 402201820697. The reversal of 402201820692 is 296028102204.

It is an interprime number because it is at equal distance from previous prime (402201820687) and next prime (402201820697).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402201820697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3116109 + ... + 3242612.

It is an arithmetic number, because the mean of its divisors is an integer number (16202023656).

Almost surely, 2^402201820692 is an apocalyptic number.

402201820692 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

402201820692 is an abundant number, since it is smaller than the sum of its proper divisors (764343882540).

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

402201820692 is a wasteful number, since it uses less digits than its factorization.

402201820692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6358989 (or 6358984 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

Adding to 402201820692 its reverse (296028102204), we get a palindrome (698229922896).

The spelling of 402201820692 in words is "four hundred two billion, two hundred one million, eight hundred twenty thousand, six hundred ninety-two".