1602742986 has 96 divisors (see below), whose sum is σ = 4043370240. Its totient is φ = 454522752.

The previous prime is 1602742963. The next prime is 1602742987. The reversal of 1602742986 is 6892472061.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1602742987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159631 + ... + 169373.

It is an arithmetic number, because the mean of its divisors is an integer number (42118440).

Almost surely, 2^1602742986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1602742986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021685120).

1602742986 is an abundant number, since it is smaller than the sum of its proper divisors (2440627254).

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

1602742986 is a wasteful number, since it uses less digits than its factorization.

1602742986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9820 (or 9817 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 1602742986 is about 40034.2726423249. The cubic root of 1602742986 is about 1170.2750920101.

The spelling of 1602742986 in words is "one billion, six hundred two million, seven hundred forty-two thousand, nine hundred eighty-six".