402241043444 has 6 divisors (see below), whose sum is σ = 703921826034. Its totient is φ = 201120521720.

The previous prime is 402241043443. The next prime is 402241043509. The reversal of 402241043444 is 444340142204.

It can be written as a sum of positive squares in only one way, i.e., 344789747344 + 57451296100 = 587188^2 + 239690^2 .

It is a super-2 number, since 2×402241043444² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402241043444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402241043443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280130427 + ... + 50280130434.

It is an arithmetic number, because the mean of its divisors is an integer number (117320304339).

Almost surely, 2^402241043444 is an apocalyptic number.

It is an amenable number.

402241043444 is a deficient number, since it is larger than the sum of its proper divisors (301680782590).

402241043444 is a wasteful number, since it uses less digits than its factorization.

402241043444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100560260865 (or 100560260863 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 402241043444 its reverse (444340142204), we get a palindrome (846581185648).

The spelling of 402241043444 in words is "four hundred two billion, two hundred forty-one million, forty-three thousand, four hundred forty-four".