819008838 has 24 divisors (see below), whose sum is σ = 1822480608. Its totient is φ = 265624272.

The previous prime is 819008837. The next prime is 819008843. The reversal of 819008838 is 838800918.

It is a super-2 number, since 2×819008838² = 1341550953444220488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 819008793 and 819008802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819008833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 614206 + ... + 615537.

It is an arithmetic number, because the mean of its divisors is an integer number (75936692).

Almost surely, 2^819008838 is an apocalyptic number.

819008838 is an abundant number, since it is smaller than the sum of its proper divisors (1003471770).

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

819008838 is a wasteful number, since it uses less digits than its factorization.

819008838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229788 (or 1229785 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 819008838 is about 28618.3304544482. The cubic root of 819008838 is about 935.6128891757.

The spelling of 819008838 in words is "eight hundred nineteen million, eight thousand, eight hundred thirty-eight".