1982879970 has 32 divisors (see below), whose sum is σ = 4912427520. Its totient is φ = 511710720.

The previous prime is 1982879963. The next prime is 1982879971. The reversal of 1982879970 is 799782891.

It is not an unprimeable number, because it can be changed into a prime (1982879971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1065135 + ... + 1066994.

It is an arithmetic number, because the mean of its divisors is an integer number (153513360).

Almost surely, 2^1982879970 is an apocalyptic number.

1982879970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1982879970 is an abundant number, since it is smaller than the sum of its proper divisors (2929547550).

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

1982879970 is a wasteful number, since it uses less digits than its factorization.

1982879970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132170.

The product of its (nonzero) digits is 4572288, while the sum is 60.

The square root of 1982879970 is about 44529.5404198157. The cubic root of 1982879970 is about 1256.3157621078.

The spelling of 1982879970 in words is "one billion, nine hundred eighty-two million, eight hundred seventy-nine thousand, nine hundred seventy".