402645203220630 has 32 divisors (see below), whose sum is σ = 966385755744768. Its totient is φ = 107367913301600.

The previous prime is 402645203220607. The next prime is 402645203220697. The reversal of 402645203220630 is 36022302546204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258014766 + ... + 259570625.

It is an arithmetic number, because the mean of its divisors is an integer number (30199554867024).

Almost surely, 2^{402645203220630} is an apocalyptic number.

402645203220630 is an abundant number, since it is smaller than the sum of its proper divisors (563740552524138).

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

402645203220630 is a wasteful number, since it uses less digits than its factorization.

402645203220630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517611332.

The product of its (nonzero) digits is 414720, while the sum is 39.

Adding to 402645203220630 its reverse (36022302546204), we get a palindrome (438667505766834).

The spelling of 402645203220630 in words is "four hundred two trillion, six hundred forty-five billion, two hundred three million, two hundred twenty thousand, six hundred thirty".