1602879660 has 72 divisors (see below), whose sum is σ = 5073475680. Its totient is φ = 408849408.

The previous prime is 1602879643. The next prime is 1602879667. The reversal of 1602879660 is 669782061.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1602879667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189445 + ... + 197724.

It is an arithmetic number, because the mean of its divisors is an integer number (70464940).

Almost surely, 2^1602879660 is an apocalyptic number.

1602879660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1602879660 is an abundant number, since it is smaller than the sum of its proper divisors (3470596020).

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

1602879660 is a wasteful number, since it uses less digits than its factorization.

1602879660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387207 (or 387202 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1602879660 is about 40035.9795683832. The cubic root of 1602879660 is about 1170.3083561564.

The spelling of 1602879660 in words is "one billion, six hundred two million, eight hundred seventy-nine thousand, six hundred sixty".