402341023404442 has 16 divisors (see below), whose sum is σ = 611786985662952. Its totient is φ = 198412101780480.

The previous prime is 402341023404433. The next prime is 402341023404521. The reversal of 402341023404442 is 244404320143204.

It can be written as a sum of positive squares in 4 ways, for example, as 402061088234521 + 279935169921 = 20051461^2 + 529089^2 .

It is a super-2 number, since 2×402341023404442² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7405713 + ... + 29317684.

Almost surely, 2^{402341023404442} is an apocalyptic number.

402341023404442 is a deficient number, since it is larger than the sum of its proper divisors (209445962258510).

402341023404442 is a wasteful number, since it uses less digits than its factorization.

402341023404442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36798513.

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 402341023404442 its reverse (244404320143204), we get a palindrome (646745343547646).

The spelling of 402341023404442 in words is "four hundred two trillion, three hundred forty-one billion, twenty-three million, four hundred four thousand, four hundred forty-two".