402440231001 has 8 divisors (see below), whose sum is σ = 536590464544. Its totient is φ = 268291742400.

The previous prime is 402440230897. The next prime is 402440231009. The reversal of 402440231001 is 100132044204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402440231001 - 2¹⁵ = 402440198233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402440231009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261201 + ... + 934401.

It is an arithmetic number, because the mean of its divisors is an integer number (67073808068).

Almost surely, 2^402440231001 is an apocalyptic number.

It is an amenable number.

402440231001 is a deficient number, since it is larger than the sum of its proper divisors (134150233543).

402440231001 is a wasteful number, since it uses less digits than its factorization.

402440231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872471.

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

Adding to 402440231001 its reverse (100132044204), we get a palindrome (502572275205).

The spelling of 402440231001 in words is "four hundred two billion, four hundred forty million, two hundred thirty-one thousand, one".