949843381 has 4 divisors (see below), whose sum is σ = 952390252. Its totient is φ = 947296512.

The previous prime is 949843361. The next prime is 949843393. The reversal of 949843381 is 183348949.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 394816900 + 555026481 = 19870^2 + 23559^2 .

It is a cyclic number.

It is not a de Polignac number, because 949843381 - 2⁷ = 949843253 is a prime.

It is a super-2 number, since 2×949843381² = 1804404896859022322, 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 (949843361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272876 + ... + 1273621.

It is an arithmetic number, because the mean of its divisors is an integer number (238097563).

Almost surely, 2^949843381 is an apocalyptic number.

It is an amenable number.

949843381 is a deficient number, since it is larger than the sum of its proper divisors (2546871).

949843381 is a wasteful number, since it uses less digits than its factorization.

949843381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546870.

The product of its digits is 746496, while the sum is 49.

The square root of 949843381 is about 30819.5292144445. The cubic root of 949843381 is about 982.9935470917.

The spelling of 949843381 in words is "nine hundred forty-nine million, eight hundred forty-three thousand, three hundred eighty-one".