1984904792 has 64 divisors (see below), whose sum is σ = 4148928000. Its totient is φ = 884367360.

The previous prime is 1984904791. The next prime is 1984904809. The reversal of 1984904792 is 2974094891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984904791) 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, 411209 + ... + 416007.

It is an arithmetic number, because the mean of its divisors is an integer number (64827000).

Almost surely, 2^1984904792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1984904792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2074464000).

1984904792 is an abundant number, since it is smaller than the sum of its proper divisors (2164023208).

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

1984904792 is a wasteful number, since it uses less digits than its factorization.

1984904792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956 (or 4952 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 1984904792 is about 44552.2703349672. The cubic root of 1984904792 is about 1256.7432464486.

The spelling of 1984904792 in words is "one billion, nine hundred eighty-four million, nine hundred four thousand, seven hundred ninety-two".