4042499 has 4 divisors (see below), whose sum is σ = 4047864. Its totient is φ = 4037136.

The previous prime is 4042471. The next prime is 4042501. The reversal of 4042499 is 9942404.

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

It is a cyclic number.

It is not a de Polignac number, because 4042499 - 2¹² = 4038403 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322 + ... + 3135.

It is an arithmetic number, because the mean of its divisors is an integer number (1011966).

Almost surely, 2^4042499 is an apocalyptic number.

4042499 is a deficient number, since it is larger than the sum of its proper divisors (5365).

4042499 is an equidigital number, since it uses as much as digits as its factorization.

4042499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5364.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 4042499 is about 2010.5966776059. The cubic root of 4042499 is about 159.3003171302.

The spelling of 4042499 in words is "four million, forty-two thousand, four hundred ninety-nine".