4240019 has 6 divisors (see below), whose sum is σ = 4932324. Its totient is φ = 3634260.

The previous prime is 4240007. The next prime is 4240037. The reversal of 4240019 is 9100424.

It is not a de Polignac number, because 4240019 - 2¹² = 4235923 is a prime.

It is a super-2 number, since 2×4240019² = 35955522240722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4240069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43217 + ... + 43314.

It is an arithmetic number, because the mean of its divisors is an integer number (822054).

Almost surely, 2^4240019 is an apocalyptic number.

4240019 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

4240019 is a deficient number, since it is larger than the sum of its proper divisors (692305).

4240019 is an equidigital number, since it uses as much as digits as its factorization.

4240019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86545 (or 86538 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 4240019 is about 2059.1306418001. The cubic root of 4240019 is about 161.8536884532.

The spelling of 4240019 in words is "four million, two hundred forty thousand, nineteen".