1438078084 has 27 divisors (see below), whose sum is σ = 2563818327. Its totient is φ = 705804264.

The previous prime is 1438078073. The next prime is 1438078139. The reversal of 1438078084 is 4808708341.

The square root of 1438078084 is 37922.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×1438078084² = 4136137151362222112, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1438078084.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5081407 + ... + 5081689.

Almost surely, 2^1438078084 is an apocalyptic number.

1438078084 is the 37922-nd square number.

It is an amenable number.

1438078084 is a deficient number, since it is larger than the sum of its proper divisors (1125740243).

1438078084 is an frugal number, since it uses more digits than its factorization.

1438078084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The cubic root of 1438078084 is about 1128.7406242632.

The spelling of 1438078084 in words is "one billion, four hundred thirty-eight million, seventy-eight thousand, eighty-four".