1938288676 has 9 divisors (see below), whose sum is σ = 3392159281. Its totient is φ = 969100312.

The previous prime is 1938288647. The next prime is 1938288679. The reversal of 1938288676 is 6768828391.

The square root of 1938288676 is 44026.

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

It can be written as a sum of positive squares in only one way, i.e., 1341756900 + 596531776 = 36630^2 + 24424^2 .

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 1938288676.

It is not an unprimeable number, because it can be changed into a prime (1938288679) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 77046 + ... + 99058.

Almost surely, 2^1938288676 is an apocalyptic number.

1938288676 is the 44026-th square number.

It is an amenable number.

1938288676 is a deficient number, since it is larger than the sum of its proper divisors (1453870605).

1938288676 is an frugal number, since it uses more digits than its factorization.

1938288676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44030 (or 22015 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 58.

The cubic root of 1938288676 is about 1246.8268693561.

The spelling of 1938288676 in words is "one billion, nine hundred thirty-eight million, two hundred eighty-eight thousand, six hundred seventy-six".