402244433031 has 16 divisors (see below), whose sum is σ = 629509950464. Its totient is φ = 223641692064.

The previous prime is 402244433023. The next prime is 402244433051. The reversal of 402244433031 is 130334442204.

It is a happy number.

It is not a de Polignac number, because 402244433031 - 2³ = 402244433023 is a prime.

It is a super-2 number, since 2×402244433031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402244433031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402244433051) 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, 258843775 + ... + 258845328.

It is an arithmetic number, because the mean of its divisors is an integer number (39344371904).

Almost surely, 2^402244433031 is an apocalyptic number.

402244433031 is a deficient number, since it is larger than the sum of its proper divisors (227265517433).

402244433031 is a wasteful number, since it uses less digits than its factorization.

402244433031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517689150.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 402244433031 its reverse (130334442204), we get a palindrome (532578875235).

The spelling of 402244433031 in words is "four hundred two billion, two hundred forty-four million, four hundred thirty-three thousand, thirty-one".