4557690 has 48 divisors (see below), whose sum is σ = 12004200. Its totient is φ = 1199616.

The previous prime is 4557689. The next prime is 4557719. The reversal of 4557690 is 967554.

It can be written as a sum of positive squares in 4 ways, for example, as 2152089 + 2405601 = 1467^2 + 1551^2 .

It is a super-2 number, since 2×4557690² = 41545076272200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7726 + ... + 8294.

Almost surely, 2^4557690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4557690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6002100).

4557690 is an abundant number, since it is smaller than the sum of its proper divisors (7446510).

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

4557690 is a wasteful number, since it uses less digits than its factorization.

4557690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 4557690 is about 2134.8747035833. The cubic root of 4557690 is about 165.7988806374.

The spelling of 4557690 in words is "four million, five hundred fifty-seven thousand, six hundred ninety".