11982738 has 16 divisors (see below), whose sum is σ = 24012576. Its totient is φ = 3986400.

The previous prime is 11982721. The next prime is 11982781. The reversal of 11982738 is 83728911.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11982696 and 11982705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945 + ... + 5267.

It is an arithmetic number, because the mean of its divisors is an integer number (1500786).

Almost surely, 2^11982738 is an apocalyptic number.

11982738 is an abundant number, since it is smaller than the sum of its proper divisors (12029838).

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

11982738 is a wasteful number, since it uses less digits than its factorization.

11982738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929.

The product of its digits is 24192, while the sum is 39.

The square root of 11982738 is about 3461.6091633805. The cubic root of 11982738 is about 228.8330177341.

It can be divided in two parts, 11982 and 738, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 11982738 in words is "eleven million, nine hundred eighty-two thousand, seven hundred thirty-eight".