4521242 has 16 divisors (see below), whose sum is σ = 7452864. Its totient is φ = 2040000.

The previous prime is 4521241. The next prime is 4521299. The reversal of 4521242 is 2421254.

It is a happy number.

It is a d-powerful number, because it can be written as 4² + 5⁶ + 2¹⁵ + 1 + 2¹⁸ + 4⁷ + 2²² .

It is not an unprimeable number, because it can be changed into a prime (4521241) 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, 2642 + ... + 4002.

It is an arithmetic number, because the mean of its divisors is an integer number (465804).

Almost surely, 2^4521242 is an apocalyptic number.

4521242 is a deficient number, since it is larger than the sum of its proper divisors (2931622).

4521242 is a wasteful number, since it uses less digits than its factorization.

4521242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525.

The product of its digits is 640, while the sum is 20.

The square root of 4521242 is about 2126.3212363140. The cubic root of 4521242 is about 165.3557308294.

Adding to 4521242 its reverse (2421254), we get a palindrome (6942496).

It can be divided in two parts, 45212 and 42, that added together give a palindrome (45254).

The spelling of 4521242 in words is "four million, five hundred twenty-one thousand, two hundred forty-two".