1994426982 has 32 divisors (see below), whose sum is σ = 4433666400. Its totient is φ = 664568064.

The previous prime is 1994426977. The next prime is 1994426983. The reversal of 1994426982 is 2896244991.

1994426982 is a `hidden beast` number, since 199 + 442 + 6 + 9 + 8 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994426983) 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, 205258 + ... + 214754.

It is an arithmetic number, because the mean of its divisors is an integer number (138552075).

Almost surely, 2^1994426982 is an apocalyptic number.

1994426982 is an abundant number, since it is smaller than the sum of its proper divisors (2439239418).

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

1994426982 is a wasteful number, since it uses less digits than its factorization.

1994426982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13397 (or 13391 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 1994426982 is about 44659.0078483613. The cubic root of 1994426982 is about 1258.7497007803.

The spelling of 1994426982 in words is "one billion, nine hundred ninety-four million, four hundred twenty-six thousand, nine hundred eighty-two".