1930984493 has 8 divisors (see below), whose sum is σ = 1945325688. Its totient is φ = 1916688384.

The previous prime is 1930984441. The next prime is 1930984499. The reversal of 1930984493 is 3944890391.

It can be written as a sum of positive squares in 4 ways, for example, as 606242884 + 1324741609 = 24622^2 + 36397^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1930984493 - 2²⁴ = 1914207277 is a prime.

It is a super-2 number, since 2×1930984493² = 7457402224412934098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930984499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77255 + ... + 99147.

It is an arithmetic number, because the mean of its divisors is an integer number (243165711).

Almost surely, 2^1930984493 is an apocalyptic number.

It is an amenable number.

1930984493 is a deficient number, since it is larger than the sum of its proper divisors (14341195).

1930984493 is a wasteful number, since it uses less digits than its factorization.

1930984493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22543.

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 1930984493 is about 43942.9686411831. The cubic root of 1930984493 is about 1245.2587308711.

The spelling of 1930984493 in words is "one billion, nine hundred thirty million, nine hundred eighty-four thousand, four hundred ninety-three".