402642143200 has 144 divisors (see below), whose sum is σ = 1072675094400. Its totient is φ = 146365376000.

The previous prime is 402642143179. The next prime is 402642143213. The reversal of 402642143200 is 2341246204.

It is a super-3 number, since 3×402642143200³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34410951 + ... + 34422649.

It is an arithmetic number, because the mean of its divisors is an integer number (7449132600).

Almost surely, 2^402642143200 is an apocalyptic number.

402642143200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402642143200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536337547200).

402642143200 is an abundant number, since it is smaller than the sum of its proper divisors (670032951200).

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

402642143200 is a wasteful number, since it uses less digits than its factorization.

402642143200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15641 (or 15628 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 402642143200 its reverse (2341246204), we get a palindrome (404983389404).

The spelling of 402642143200 in words is "four hundred two billion, six hundred forty-two million, one hundred forty-three thousand, two hundred".