1630787982 has 16 divisors (see below), whose sum is σ = 3269113680. Its totient is φ = 542339712.

The previous prime is 1630787957. The next prime is 1630787989. The reversal of 1630787982 is 2897870361.

1630787982 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630787989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311257 + ... + 316452.

It is an arithmetic number, because the mean of its divisors is an integer number (204319605).

Almost surely, 2^1630787982 is an apocalyptic number.

1630787982 is an abundant number, since it is smaller than the sum of its proper divisors (1638325698).

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

1630787982 is a wasteful number, since it uses less digits than its factorization.

1630787982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628147.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 1630787982 is about 40383.0160092086. The cubic root of 1630787982 is about 1177.0615342709.

The spelling of 1630787982 in words is "one billion, six hundred thirty million, seven hundred eighty-seven thousand, nine hundred eighty-two".