1978296632 has 32 divisors (see below), whose sum is σ = 4000241280. Its totient is φ = 911779200.

The previous prime is 1978296629. The next prime is 1978296659. The reversal of 1978296632 is 2366928791.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63257 + ... + 89207.

It is an arithmetic number, because the mean of its divisors is an integer number (125007540).

Almost surely, 2^1978296632 is an apocalyptic number.

It is an amenable number.

1978296632 is an abundant number, since it is smaller than the sum of its proper divisors (2021944648).

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

1978296632 is a wasteful number, since it uses less digits than its factorization.

1978296632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26703 (or 26699 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 53.

The square root of 1978296632 is about 44478.0466297701. The cubic root of 1978296632 is about 1255.3470428525.

The spelling of 1978296632 in words is "one billion, nine hundred seventy-eight million, two hundred ninety-six thousand, six hundred thirty-two".