402242240104020 has 72 divisors (see below), whose sum is σ = 1220739721614504. Its totient is φ = 107211416997888.

The previous prime is 402242240104013. The next prime is 402242240104043. The reversal of 402242240104020 is 20401042242204.

402242240104020 is a `hidden beast` number, since 4 + 0 + 2 + 2 + 4 + 2 + 240 + 10 + 402 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 199420094937924 + 202822145166096 = 14121618^2 + 14241564^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 553598049 + ... + 554324168.

It is an arithmetic number, because the mean of its divisors is an integer number (16954718355757).

Almost surely, 2^{402242240104020} is an apocalyptic number.

It is an amenable number.

402242240104020 is an abundant number, since it is smaller than the sum of its proper divisors (818497481510484).

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

402242240104020 is a wasteful number, since it uses less digits than its factorization.

402242240104020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107924249 (or 1107924244 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 402242240104020 its reverse (20401042242204), we get a palindrome (422643282346224).

The spelling of 402242240104020 in words is "four hundred two trillion, two hundred forty-two billion, two hundred forty million, one hundred four thousand, twenty".