1602640442 has 8 divisors (see below), whose sum is σ = 2588880756. Its totient is φ = 739680192.

The previous prime is 1602640421. The next prime is 1602640453. The reversal of 1602640442 is 2440462061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1570616161 + 32024281 = 39631^2 + 5659^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30819983 + ... + 30820034.

Almost surely, 2^1602640442 is an apocalyptic number.

1602640442 is a deficient number, since it is larger than the sum of its proper divisors (986240314).

1602640442 is a wasteful number, since it uses less digits than its factorization.

1602640442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61640032.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 1602640442 is about 40032.9919191659. The cubic root of 1602640442 is about 1170.2501332884.

The spelling of 1602640442 in words is "one billion, six hundred two million, six hundred forty thousand, four hundred forty-two".