402144340302 has 40 divisors (see below), whose sum is σ = 901156760856. Its totient is φ = 134039849328.

The previous prime is 402144340291. The next prime is 402144340321. The reversal of 402144340302 is 203043441204.

It is a happy number.

402144340302 is a `hidden beast` number, since 4 + 0 + 2 + 14 + 4 + 340 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2920468 + ... + 3055064.

Almost surely, 2^402144340302 is an apocalyptic number.

402144340302 is an abundant number, since it is smaller than the sum of its proper divisors (499012420554).

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

402144340302 is a wasteful number, since it uses less digits than its factorization.

402144340302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153054 (or 153045 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 402144340302 its reverse (203043441204), we get a palindrome (605187781506).

The spelling of 402144340302 in words is "four hundred two billion, one hundred forty-four million, three hundred forty thousand, three hundred two".