4057028521 has 8 divisors (see below), whose sum is σ = 4993265984. Its totient is φ = 3209956560.

The previous prime is 4057028513. The next prime is 4057028531. The reversal of 4057028521 is 1258207504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4057028521 - 2³ = 4057028513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4057028501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22291275 + ... + 22291456.

It is an arithmetic number, because the mean of its divisors is an integer number (624158248).

Almost surely, 2^4057028521 is an apocalyptic number.

It is an amenable number.

4057028521 is a deficient number, since it is larger than the sum of its proper divisors (936237463).

4057028521 is a wasteful number, since it uses less digits than its factorization.

4057028521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44582751.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 4057028521 is about 63694.8076455216. The cubic root of 4057028521 is about 1594.9094095291.

The spelling of 4057028521 in words is "four billion, fifty-seven million, twenty-eight thousand, five hundred twenty-one".