402434343639 has 6 divisors (see below), whose sum is σ = 581294051936. Its totient is φ = 268289562420.

The previous prime is 402434343629. The next prime is 402434343643. The reversal of 402434343639 is 936343434204.

402434343639 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 3 + 4 + 3 + 4 + 3 + 639 = 666.

It is not a de Polignac number, because 402434343639 - 2⁹ = 402434343127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402434343594 and 402434343603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402434343629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22357463527 + ... + 22357463544.

Almost surely, 2^402434343639 is an apocalyptic number.

402434343639 is a deficient number, since it is larger than the sum of its proper divisors (178859708297).

402434343639 is a wasteful number, since it uses less digits than its factorization.

402434343639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44714927077 (or 44714927074 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 45.

The spelling of 402434343639 in words is "four hundred two billion, four hundred thirty-four million, three hundred forty-three thousand, six hundred thirty-nine".