4521730 has 16 divisors (see below), whose sum is σ = 8181504. Its totient is φ = 1799280.

The previous prime is 4521721. The next prime is 4521739. The reversal of 4521730 is 371254.

It is an interprime number because it is at equal distance from previous prime (4521721) and next prime (4521739).

It is not an unprimeable number, because it can be changed into a prime (4521739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 3181.

It is an arithmetic number, because the mean of its divisors is an integer number (511344).

Almost surely, 2^4521730 is an apocalyptic number.

4521730 is a deficient number, since it is larger than the sum of its proper divisors (3659774).

4521730 is a wasteful number, since it uses less digits than its factorization.

4521730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 4521730 is about 2126.4359853990. The cubic root of 4521730 is about 165.3616798359.

Adding to 4521730 its reverse (371254), we get a palindrome (4892984).

The spelling of 4521730 in words is "four million, five hundred twenty-one thousand, seven hundred thirty".