4540072 has 16 divisors (see below), whose sum is σ = 8536500. Its totient is φ = 2263680.

The previous prime is 4540061. The next prime is 4540079. The reversal of 4540072 is 2700454.

It can be written as a sum of positive squares in 2 ways, for example, as 4384836 + 155236 = 2094^2 + 394^2 .

It is a super-2 number, since 2×4540072² = 41224507530368, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4540079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3804 + ... + 4852.

Almost surely, 2^4540072 is an apocalyptic number.

It is an amenable number.

4540072 is a deficient number, since it is larger than the sum of its proper divisors (3996428).

4540072 is a wasteful number, since it uses less digits than its factorization.

4540072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 4540072 is about 2130.7444708364. The cubic root of 4540072 is about 165.5849698915.

The spelling of 4540072 in words is "four million, five hundred forty thousand, seventy-two".