4721241 has 16 divisors (see below), whose sum is σ = 7225344. Its totient is φ = 2686224.

The previous prime is 4721221. The next prime is 4721243. The reversal of 4721241 is 1421274.

It is a happy number.

It is not a de Polignac number, because 4721241 - 2¹⁹ = 4196953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁴ + 7³ + 2¹¹ + 1 + 2¹⁹ + 4¹¹ + 1 .

It is not an unprimeable number, because it can be changed into a prime (4721243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7750 + ... + 8336.

It is an arithmetic number, because the mean of its divisors is an integer number (451584).

Almost surely, 2^4721241 is an apocalyptic number.

It is an amenable number.

4721241 is a deficient number, since it is larger than the sum of its proper divisors (2504103).

4721241 is a wasteful number, since it uses less digits than its factorization.

4721241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980.

The product of its digits is 448, while the sum is 21.

The square root of 4721241 is about 2172.8416877444. The cubic root of 4721241 is about 167.7588305464.

The spelling of 4721241 in words is "four million, seven hundred twenty-one thousand, two hundred forty-one".