402441320001 has 16 divisors (see below), whose sum is σ = 613288856448. Its totient is φ = 229949616000.

The previous prime is 402441319993. The next prime is 402441320003. The reversal of 402441320001 is 100023144204.

It is not a de Polignac number, because 402441320001 - 2³ = 402441319993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 402441320001.

It is not an unprimeable number, because it can be changed into a prime (402441320003) 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, 405900 + ... + 984701.

It is an arithmetic number, because the mean of its divisors is an integer number (38330553528).

Almost surely, 2^402441320001 is an apocalyptic number.

It is an amenable number.

402441320001 is a deficient number, since it is larger than the sum of its proper divisors (210847536447).

402441320001 is a wasteful number, since it uses less digits than its factorization.

402441320001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404392.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 402441320001 its reverse (100023144204), we get a palindrome (502464464205).

The spelling of 402441320001 in words is "four hundred two billion, four hundred forty-one million, three hundred twenty thousand, one".