1934998813 has 32 divisors (see below), whose sum is σ = 2251307520. Its totient is φ = 1646400000.

The previous prime is 1934998801. The next prime is 1934998829. The reversal of 1934998813 is 3188994391.

It is a cyclic number.

It is not a de Polignac number, because 1934998813 - 2⁹ = 1934998301 is a prime.

It is a super-2 number, since 2×1934998813² = 7488440812622817938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1934998843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2576188 + ... + 2576938.

It is an arithmetic number, because the mean of its divisors is an integer number (70353360).

Almost surely, 2^1934998813 is an apocalyptic number.

It is an amenable number.

1934998813 is a deficient number, since it is larger than the sum of its proper divisors (316308707).

1934998813 is a wasteful number, since it uses less digits than its factorization.

1934998813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its digits is 1679616, while the sum is 55.

The square root of 1934998813 is about 43988.6214037221. The cubic root of 1934998813 is about 1246.1210555897.

The spelling of 1934998813 in words is "one billion, nine hundred thirty-four million, nine hundred ninety-eight thousand, eight hundred thirteen".