1995046780 has 24 divisors (see below), whose sum is σ = 4191693408. Its totient is φ = 797619648.

The previous prime is 1995046769. The next prime is 1995046789. The reversal of 1995046780 is 876405991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995046789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17842 + ... + 65638.

It is an arithmetic number, because the mean of its divisors is an integer number (174653892).

Almost surely, 2^1995046780 is an apocalyptic number.

1995046780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1995046780 is an abundant number, since it is smaller than the sum of its proper divisors (2196646628).

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

1995046780 is a wasteful number, since it uses less digits than its factorization.

1995046780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49893 (or 49891 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 1995046780 is about 44665.9465364835. The cubic root of 1995046780 is about 1258.8800790379.

The spelling of 1995046780 in words is "one billion, nine hundred ninety-five million, forty-six thousand, seven hundred eighty".