1912728 has 16 divisors (see below), whose sum is σ = 4781880. Its totient is φ = 637568.

The previous prime is 1912727. The next prime is 1912733. The reversal of 1912728 is 8272191.

It is a junction number, because it is equal to n+sod(n) for n = 1912695 and 1912704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39825 + ... + 39872.

2^1912728 is an apocalyptic number.

It is an amenable number.

1912728 is an abundant number, since it is smaller than the sum of its proper divisors (2869152).

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

1912728 is a wasteful number, since it uses less digits than its factorization.

1912728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79706 (or 79702 counting only the distinct ones).

The product of its digits is 2016, while the sum is 30.

The square root of 1912728 is about 1383.0140997112. The cubic root of 1912728 is about 124.1321864732.

The spelling of 1912728 in words is "one million, nine hundred twelve thousand, seven hundred twenty-eight".