1996273878 has 16 divisors (see below), whose sum is σ = 3996748656. Its totient is φ = 664724480.

The previous prime is 1996273849. The next prime is 1996273901. The reversal of 1996273878 is 8783726991.

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, 168843 + ... + 180278.

It is an arithmetic number, because the mean of its divisors is an integer number (249796791).

Almost surely, 2^1996273878 is an apocalyptic number.

1996273878 is an abundant number, since it is smaller than the sum of its proper divisors (2000474778).

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

1996273878 is a wasteful number, since it uses less digits than its factorization.

1996273878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350079.

The product of its digits is 9144576, while the sum is 60.

The square root of 1996273878 is about 44679.6808180184. The cubic root of 1996273878 is about 1259.1381268919.

The spelling of 1996273878 in words is "one billion, nine hundred ninety-six million, two hundred seventy-three thousand, eight hundred seventy-eight".