4003249 has 4 divisors (see below), whose sum is σ = 4078836. Its totient is φ = 3927664.

The previous prime is 4003231. The next prime is 4003253. The reversal of 4003249 is 9423004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2782224 + 1221025 = 1668^2 + 1105^2 .

It is a cyclic number.

It is not a de Polignac number, because 4003249 - 2⁷ = 4003121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4003949) 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, 37714 + ... + 37819.

It is an arithmetic number, because the mean of its divisors is an integer number (1019709).

Almost surely, 2^4003249 is an apocalyptic number.

It is an amenable number.

4003249 is a deficient number, since it is larger than the sum of its proper divisors (75587).

4003249 is an equidigital number, since it uses as much as digits as its factorization.

4003249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75586.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4003249 is about 2000.8120851294. The cubic root of 4003249 is about 158.7830724490.

It can be divided in two parts, 400 and 3249, that multiplied together give a square (1299600 = 1140²).

The spelling of 4003249 in words is "four million, three thousand, two hundred forty-nine".