4540221982 has 4 divisors (see below), whose sum is σ = 6810332976. Its totient is φ = 2270110990.

The previous prime is 4540221979. The next prime is 4540221989. The reversal of 4540221982 is 2891220454.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×4540221982² = 41227231291672016648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540221989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135055494 + ... + 1135055497.

It is an arithmetic number, because the mean of its divisors is an integer number (1702583244).

Almost surely, 2^4540221982 is an apocalyptic number.

4540221982 is a deficient number, since it is larger than the sum of its proper divisors (2270110994).

4540221982 is a wasteful number, since it uses less digits than its factorization.

4540221982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270110993.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 4540221982 is about 67381.1693427771. The cubic root of 4540221982 is about 1655.8679324672.

The spelling of 4540221982 in words is "four billion, five hundred forty million, two hundred twenty-one thousand, nine hundred eighty-two".