4257728120 has 32 divisors (see below), whose sum is σ = 9783720000. Its totient is φ = 1666854528.

The previous prime is 4257728093. The next prime is 4257728131. The reversal of 4257728120 is 218277524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130495 + ... + 1134254.

It is an arithmetic number, because the mean of its divisors is an integer number (305741250).

Almost surely, 2^4257728120 is an apocalyptic number.

4257728120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4257728120 is an abundant number, since it is smaller than the sum of its proper divisors (5525991880).

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

4257728120 is a wasteful number, since it uses less digits than its factorization.

4257728120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264807 (or 2264803 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 4257728120 is about 65251.2691064319. The cubic root of 4257728120 is about 1620.7871143251.

The spelling of 4257728120 in words is "four billion, two hundred fifty-seven million, seven hundred twenty-eight thousand, one hundred twenty".