814421838 has 16 divisors (see below), whose sum is σ = 1629124560. Its totient is φ = 271427136.

The previous prime is 814421831. The next prime is 814421857. The reversal of 814421838 is 838124418.

It is a happy number.

It is a super-2 number, since 2×814421838² = 1326565860422596488, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 814421796 and 814421805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814421831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57178 + ... + 69986.

It is an arithmetic number, because the mean of its divisors is an integer number (101820285).

Almost surely, 2^814421838 is an apocalyptic number.

814421838 is an abundant number, since it is smaller than the sum of its proper divisors (814702722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

814421838 is a wasteful number, since it uses less digits than its factorization.

814421838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23411.

The product of its digits is 49152, while the sum is 39.

The square root of 814421838 is about 28538.0769849687. The cubic root of 814421838 is about 933.8629310965.

The spelling of 814421838 in words is "eight hundred fourteen million, four hundred twenty-one thousand, eight hundred thirty-eight".