4239481 has 9 divisors (see below), whose sum is σ = 4453423.
Its totient is φ = 4035640.
The previous prime is 4239479. The next prime is 4239491. The reversal of 4239481 is 1849324.
The square root of 4239481 is 2059.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 2223081 + 2016400 = 1491^2 + 1420^2
It is not a de Polignac number, because 4239481 - 21 = 4239479 is a prime.
It is a super-2 number, since 2×42394812 = 35946398298722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (4239401) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 59676 + ... + 59746.
Almost surely, 24239481 is an apocalyptic number.
4239481 is the 2059-th square number.
4239481 is the 1030-th centered octagonal number.
It is an amenable number.
4239481 is a deficient number, since it is larger than the sum of its proper divisors (213942).
4239481 is an frugal number, since it uses more digits than its factorization.
4239481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 200 (or 100 counting only the distinct ones).
The product of its digits is 6912, while the sum is 31.
The cubic root of 4239481 is about 161.8468424958.
The spelling of 4239481 in words is "four million, two hundred thirty-nine thousand, four hundred eighty-one".