402144444210 has 32 divisors (see below), whose sum is σ = 970147440000. Its totient is φ = 106682876928.

The previous prime is 402144444187. The next prime is 402144444241. The reversal of 402144444210 is 12444441204.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 34721710 + ... + 34733289.

It is an arithmetic number, because the mean of its divisors is an integer number (30317107500).

Almost surely, 2^402144444210 is an apocalyptic number.

402144444210 is an abundant number, since it is smaller than the sum of its proper divisors (568002995790).

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

402144444210 is a wasteful number, since it uses less digits than its factorization.

402144444210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69455202.

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 402144444210 its reverse (12444441204), we get a palindrome (414588885414).

The spelling of 402144444210 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-four thousand, two hundred ten".