1302642442 has 16 divisors (see below), whose sum is σ = 2088994752. Its totient is φ = 607055040.

The previous prime is 1302642433. The next prime is 1302642449. The reversal of 1302642442 is 2442462031.

It is a self number, because there is not a number n which added to its sum of digits gives 1302642442.

It is not an unprimeable number, because it can be changed into a prime (1302642449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182484 + ... + 189487.

It is an arithmetic number, because the mean of its divisors is an integer number (130562172).

Almost surely, 2^1302642442 is an apocalyptic number.

1302642442 is a deficient number, since it is larger than the sum of its proper divisors (786352310).

1302642442 is a wasteful number, since it uses less digits than its factorization.

1302642442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372093.

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

The square root of 1302642442 is about 36092.1382298140. The cubic root of 1302642442 is about 1092.1318550056.

The spelling of 1302642442 in words is "one billion, three hundred two million, six hundred forty-two thousand, four hundred forty-two".