402620343411 has 64 divisors (see below), whose sum is σ = 648373340160. Its totient is φ = 218934627840.

The previous prime is 402620343401. The next prime is 402620343427. The reversal of 402620343411 is 114343026204.

It is not a de Polignac number, because 402620343411 - 2²⁵ = 402586788979 is a prime.

It is a super-2 number, since 2×402620343411² (a number of 24 digits) contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 16479841 + ... + 16504253.

It is an arithmetic number, because the mean of its divisors is an integer number (10130833440).

Almost surely, 2^402620343411 is an apocalyptic number.

402620343411 is a deficient number, since it is larger than the sum of its proper divisors (245752996749).

402620343411 is a wasteful number, since it uses less digits than its factorization.

402620343411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25516.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 402620343411 its reverse (114343026204), we get a palindrome (516963369615).

It can be divided in two parts, 402620 and 343411, that added together give a triangular number (746031 = T₁₂₂₁).

The spelling of 402620343411 in words is "four hundred two billion, six hundred twenty million, three hundred forty-three thousand, four hundred eleven".