402442144300 has 144 divisors (see below), whose sum is σ = 1006760563200. Its totient is φ = 136779747840.

The previous prime is 402442144289. The next prime is 402442144331. The reversal of 402442144300 is 3441244204.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78923151 + ... + 78928249.

It is an arithmetic number, because the mean of its divisors is an integer number (6991392800).

Almost surely, 2^402442144300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402442144300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503380281600).

402442144300 is an abundant number, since it is smaller than the sum of its proper divisors (604318418900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402442144300 is a wasteful number, since it uses less digits than its factorization.

402442144300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080 (or 6073 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 402442144300 its reverse (3441244204), we get a palindrome (405883388504).

The spelling of 402442144300 in words is "four hundred two billion, four hundred forty-two million, one hundred forty-four thousand, three hundred".