1996028730 has 48 divisors (see below), whose sum is σ = 5381891424. Its totient is φ = 532273680.

The previous prime is 1996028719. The next prime is 1996028747. The reversal of 1996028730 is 378206991.

1996028730 is a `hidden beast` number, since 1 + 9 + 9 + 602 + 8 + 7 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408276 + ... + 413135.

It is an arithmetic number, because the mean of its divisors is an integer number (112122738).

Almost surely, 2^1996028730 is an apocalyptic number.

1996028730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1996028730 is an abundant number, since it is smaller than the sum of its proper divisors (3385862694).

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

1996028730 is an equidigital number, since it uses as much as digits as its factorization.

1996028730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821433 (or 821421 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1996028730 is about 44676.9373390791. The cubic root of 1996028730 is about 1259.0865828907.

The spelling of 1996028730 in words is "one billion, nine hundred ninety-six million, twenty-eight thousand, seven hundred thirty".