1438080819 has 32 divisors (see below), whose sum is σ = 2289745920. Its totient is φ = 784963872.

The previous prime is 1438080811. The next prime is 1438080821. The reversal of 1438080819 is 9180808341.

It is not a de Polignac number, because 1438080819 - 2³ = 1438080811 is a prime.

It is a super-2 number, since 2×1438080819² = 4136152883951421522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1438080811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 465522 + ... + 468600.

It is an arithmetic number, because the mean of its divisors is an integer number (71554560).

Almost surely, 2^1438080819 is an apocalyptic number.

1438080819 is a deficient number, since it is larger than the sum of its proper divisors (851665101).

1438080819 is a wasteful number, since it uses less digits than its factorization.

1438080819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4079.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 1438080819 is about 37922.0360608446. The cubic root of 1438080819 is about 1128.7413398256.

The spelling of 1438080819 in words is "one billion, four hundred thirty-eight million, eighty thousand, eight hundred nineteen".