1996001290 has 8 divisors (see below), whose sum is σ = 3592802340. Its totient is φ = 798400512.

The previous prime is 1996001269. The next prime is 1996001303. The reversal of 1996001290 is 921006991.

It can be written as a sum of positive squares in 2 ways, for example, as 1935208081 + 60793209 = 43991^2 + 7797^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1996001290² = 7968042299363328200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99800055 + ... + 99800074.

Almost surely, 2^1996001290 is an apocalyptic number.

1996001290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1996001290 is a deficient number, since it is larger than the sum of its proper divisors (1596801050).

1996001290 is a wasteful number, since it uses less digits than its factorization.

1996001290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199600136.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 1996001290 is about 44676.6302444578. The cubic root of 1996001290 is about 1259.0808131851.

The spelling of 1996001290 in words is "one billion, nine hundred ninety-six million, one thousand, two hundred ninety".