19012936 has 16 divisors (see below), whose sum is σ = 37746540. Its totient is φ = 8947200.

The previous prime is 19012921. The next prime is 19012969. The reversal of 19012936 is 63921091.

It can be written as a sum of positive squares in 2 ways, for example, as 17690436 + 1322500 = 4206^2 + 1150^2 .

It is a super-2 number, since 2×19012936² = 722983470680192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19012898 and 19012907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69765 + ... + 70036.

Almost surely, 2^19012936 is an apocalyptic number.

It is an amenable number.

19012936 is a deficient number, since it is larger than the sum of its proper divisors (18733604).

19012936 is a wasteful number, since it uses less digits than its factorization.

19012936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139824 (or 139820 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 19012936 is about 4360.3825520245. The cubic root of 19012936 is about 266.9007098070.

The spelling of 19012936 in words is "nineteen million, twelve thousand, nine hundred thirty-six".