1642874982 has 16 divisors (see below), whose sum is σ = 3755142912. Its totient is φ = 469392840.

The previous prime is 1642874971. The next prime is 1642875011. The reversal of 1642874982 is 2894782461.

It is a congruent number.

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, 19557994 + ... + 19558077.

It is an arithmetic number, because the mean of its divisors is an integer number (234696432).

Almost surely, 2^1642874982 is an apocalyptic number.

1642874982 is an abundant number, since it is smaller than the sum of its proper divisors (2112267930).

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

1642874982 is a wasteful number, since it uses less digits than its factorization.

1642874982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39116083.

The product of its digits is 1548288, while the sum is 51.

The square root of 1642874982 is about 40532.3942298009. The cubic root of 1642874982 is about 1179.9624095083.

The spelling of 1642874982 in words is "one billion, six hundred forty-two million, eight hundred seventy-four thousand, nine hundred eighty-two".