1913488933 has 8 divisors (see below), whose sum is σ = 2065536000. Its totient is φ = 1767179568.

The previous prime is 1913488909. The next prime is 1913488937. The reversal of 1913488933 is 3398843191.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1913488933 is a prime.

It is a super-2 number, since 2×1913488933² = 7322879793426956978, 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 (1913488937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1433733 + ... + 1435066.

It is an arithmetic number, because the mean of its divisors is an integer number (258192000).

Almost surely, 2^1913488933 is an apocalyptic number.

It is an amenable number.

1913488933 is a deficient number, since it is larger than the sum of its proper divisors (152047067).

1913488933 is a wasteful number, since it uses less digits than its factorization.

1913488933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868851.

The product of its digits is 559872, while the sum is 49.

The square root of 1913488933 is about 43743.4444574270. Note that the first 4 decimals coincide. The cubic root of 1913488933 is about 1241.4864529609.

The spelling of 1913488933 in words is "one billion, nine hundred thirteen million, four hundred eighty-eight thousand, nine hundred thirty-three".