402440232421401 has 16 divisors (see below), whose sum is σ = 538130598624000. Its totient is φ = 267522314855040.

The previous prime is 402440232421369. The next prime is 402440232421427. The reversal of 402440232421401 is 104124232044204.

It is not a de Polignac number, because 402440232421401 - 2⁵ = 402440232421369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402440232429401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77174700 + ... + 82224173.

It is an arithmetic number, because the mean of its divisors is an integer number (33633162414000).

Almost surely, 2^{402440232421401} is an apocalyptic number.

It is an amenable number.

402440232421401 is a deficient number, since it is larger than the sum of its proper divisors (135690366202599).

402440232421401 is a wasteful number, since it uses less digits than its factorization.

402440232421401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159401296.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 402440232421401 its reverse (104124232044204), we get a palindrome (506564464465605).

The spelling of 402440232421401 in words is "four hundred two trillion, four hundred forty billion, two hundred thirty-two million, four hundred twenty-one thousand, four hundred one".