914391381 has 16 divisors (see below), whose sum is σ = 1293765120. Its totient is φ = 573204720.

The previous prime is 914391377. The next prime is 914391391. The reversal of 914391381 is 183193419.

It is a happy number.

It is not a de Polignac number, because 914391381 - 2² = 914391377 is a prime.

It is a super-2 number, since 2×914391381² = 1672223195294174322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (914391301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108235 + ... + 116376.

It is an arithmetic number, because the mean of its divisors is an integer number (80860320).

Almost surely, 2^914391381 is an apocalyptic number.

It is an amenable number.

914391381 is a deficient number, since it is larger than the sum of its proper divisors (379373739).

914391381 is a wasteful number, since it uses less digits than its factorization.

914391381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224696.

The product of its digits is 23328, while the sum is 39.

The square root of 914391381 is about 30238.9050893051. The cubic root of 914391381 is about 970.6083904313.

The spelling of 914391381 in words is "nine hundred fourteen million, three hundred ninety-one thousand, three hundred eighty-one".