2136728 has 16 divisors (see below), whose sum is σ = 4370760. Its totient is φ = 971200.

The previous prime is 2136707. The next prime is 2136731. The reversal of 2136728 is 8276312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2136728.

It is a congruent number.

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, 12053 + ... + 12228.

2^2136728 is an apocalyptic number.

It is an amenable number.

2136728 is an abundant number, since it is smaller than the sum of its proper divisors (2234032).

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

2136728 is a wasteful number, since it uses less digits than its factorization.

2136728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24298 (or 24294 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 2136728 is about 1461.7551094489. The cubic root of 2136728 is about 128.8001633165.

The spelling of 2136728 in words is "two million, one hundred thirty-six thousand, seven hundred twenty-eight".