4042047 has 16 divisors (see below), whose sum is σ = 5575680. Its totient is φ = 2603232.

The previous prime is 4042037. The next prime is 4042057. The reversal of 4042047 is 7402404.

It is an interprime number because it is at equal distance from previous prime (4042037) and next prime (4042057).

It is not a de Polignac number, because 4042047 - 2¹² = 4037951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042037) 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, 15238 + ... + 15500.

It is an arithmetic number, because the mean of its divisors is an integer number (348480).

Almost surely, 2^4042047 is an apocalyptic number.

4042047 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

4042047 is a deficient number, since it is larger than the sum of its proper divisors (1533633).

4042047 is a wasteful number, since it uses less digits than its factorization.

4042047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 4042047 is about 2010.4842700205. The cubic root of 4042047 is about 159.2943796785.

The spelling of 4042047 in words is "four million, forty-two thousand, forty-seven".