2072728 has 16 divisors (see below), whose sum is σ = 4441680. Its totient is φ = 888288.

The previous prime is 2072701. The next prime is 2072731. The reversal of 2072728 is 8272702.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2072696 and 2072705.

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, 18451 + ... + 18562.

It is an arithmetic number, because the mean of its divisors is an integer number (277605).

2^2072728 is an apocalyptic number.

2072728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2072728 is an abundant number, since it is smaller than the sum of its proper divisors (2368952).

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

2072728 is a wasteful number, since it uses less digits than its factorization.

2072728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37026 (or 37022 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 2072728 is about 1439.6971903841. The cubic root of 2072728 is about 127.5011508290.

The spelling of 2072728 in words is "two million, seventy-two thousand, seven hundred twenty-eight".