838844465 has 8 divisors (see below), whose sum is σ = 1007798568. Its totient is φ = 670285440.

The previous prime is 838844443. The next prime is 838844497. The reversal of 838844465 is 564448838.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27050401 + 811794064 = 5201^2 + 28492^2 .

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

It is not a de Polignac number, because 838844465 - 2¹² = 838840369 is a prime.

It is a super-2 number, since 2×838844465² = 1407320072922272450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94076 + ... + 102605.

It is an arithmetic number, because the mean of its divisors is an integer number (125974821).

Almost surely, 2^838844465 is an apocalyptic number.

It is an amenable number.

838844465 is a deficient number, since it is larger than the sum of its proper divisors (168954103).

838844465 is a wasteful number, since it uses less digits than its factorization.

838844465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197539.

The product of its digits is 2949120, while the sum is 50.

The square root of 838844465 is about 28962.8117592198. The cubic root of 838844465 is about 943.1059419229.

The spelling of 838844465 in words is "eight hundred thirty-eight million, eight hundred forty-four thousand, four hundred sixty-five".