402620343402 has 32 divisors (see below), whose sum is σ = 821783401344. Its totient is φ = 131473742400.

The previous prime is 402620343401. The next prime is 402620343427. The reversal of 402620343402 is 204343026204.

It is a super-2 number, since 2×402620343402² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402620343402.

It is not an unprimeable number, because it can be changed into a prime (402620343401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2943049 + ... + 3076812.

It is an arithmetic number, because the mean of its divisors is an integer number (25680731292).

Almost surely, 2^402620343402 is an apocalyptic number.

402620343402 is an abundant number, since it is smaller than the sum of its proper divisors (419163057942).

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

402620343402 is a wasteful number, since it uses less digits than its factorization.

402620343402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020094.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 402620343402 its reverse (204343026204), we get a palindrome (606963369606).

The spelling of 402620343402 in words is "four hundred two billion, six hundred twenty million, three hundred forty-three thousand, four hundred two".