1900012 has 12 divisors (see below), whose sum is σ = 3358656. Its totient is φ = 940400.

The previous prime is 1900009. The next prime is 1900037. The reversal of 1900012 is 2100091.

It is a super-2 number, since 2×1900012² = 7220091200288, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 1899965 and 1900001.

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, 1948 + ... + 2755.

It is an arithmetic number, because the mean of its divisors is an integer number (279888).

2^1900012 is an apocalyptic number.

It is an amenable number.

1900012 is a deficient number, since it is larger than the sum of its proper divisors (1458644).

1900012 is a wasteful number, since it uses less digits than its factorization.

1900012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808 (or 4806 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1900012 is about 1378.4092280596. The cubic root of 1900012 is about 123.8564937124.

The spelling of 1900012 in words is "one million, nine hundred thousand, twelve".