6402642442 has 16 divisors (see below), whose sum is σ = 11621603520. Its totient is φ = 2582578368.

The previous prime is 6402642427. The next prime is 6402642469. The reversal of 6402642442 is 2442462046.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 6402642398 and 6402642407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13450692 + ... + 13451167.

It is an arithmetic number, because the mean of its divisors is an integer number (726350220).

Almost surely, 2^6402642442 is an apocalyptic number.

6402642442 is a deficient number, since it is larger than the sum of its proper divisors (5218961078).

6402642442 is a wasteful number, since it uses less digits than its factorization.

6402642442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26901885.

The product of its (nonzero) digits is 73728, while the sum is 34.

The square root of 6402642442 is about 80016.5135581400. The cubic root of 6402642442 is about 1856.8910218129.

The spelling of 6402642442 in words is "six billion, four hundred two million, six hundred forty-two thousand, four hundred forty-two".