4042719 has 12 divisors (see below), whose sum is σ = 6183216. Its totient is φ = 2536512.

The previous prime is 4042697. The next prime is 4042721. The reversal of 4042719 is 9172404.

It is a happy number.

It is not a de Polignac number, because 4042719 - 2⁸ = 4042463 is a prime.

It is a super-2 number, since 2×4042719² = 32687153825922, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4042692 and 4042701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13059 + ... + 13364.

It is an arithmetic number, because the mean of its divisors is an integer number (515268).

Almost surely, 2^4042719 is an apocalyptic number.

4042719 is a deficient number, since it is larger than the sum of its proper divisors (2140497).

4042719 is a wasteful number, since it uses less digits than its factorization.

4042719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26446 (or 26443 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 4042719 is about 2010.6513869888. The cubic root of 4042719 is about 159.3032068801.

Adding to 4042719 its sum of digits (27), we get a triangular number (4042746 = T₂₈₄₃).

It can be divided in two parts, 4042 and 719, that added together give a square (4761 = 69²).

The spelling of 4042719 in words is "four million, forty-two thousand, seven hundred nineteen".