4200728 has 16 divisors (see below), whose sum is σ = 9001680. Its totient is φ = 1800288.

The previous prime is 4200709. The next prime is 4200731. The reversal of 4200728 is 8270024.

It is a super-2 number, since 2×4200728² = 35292231459968, which contains 22 as substring.

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, 37451 + ... + 37562.

It is an arithmetic number, because the mean of its divisors is an integer number (562605).

Almost surely, 2^4200728 is an apocalyptic number.

It is an amenable number.

4200728 is an abundant number, since it is smaller than the sum of its proper divisors (4800952).

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

4200728 is a wasteful number, since it uses less digits than its factorization.

4200728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75026 (or 75022 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 4200728 is about 2049.5677593093. The cubic root of 4200728 is about 161.3521860961.

The spelling of 4200728 in words is "four million, two hundred thousand, seven hundred twenty-eight".