2240819 has 16 divisors (see below), whose sum is σ = 2688000. Its totient is φ = 1866312.

The previous prime is 2240809. The next prime is 2240827. The reversal of 2240819 is 9180422.

It is a de Polignac number, because none of the positive numbers 2^k-2240819 is a prime.

It is a super-2 number, since 2×2240819² = 10042539581522, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2240809) 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, 16052 + ... + 16190.

It is an arithmetic number, because the mean of its divisors is an integer number (168000).

2^2240819 is an apocalyptic number.

2240819 is a deficient number, since it is larger than the sum of its proper divisors (447181).

2240819 is an equidigital number, since it uses as much as digits as its factorization.

2240819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2240819 is about 1496.9365384010. The cubic root of 2240819 is about 130.8585969127.

The spelling of 2240819 in words is "two million, two hundred forty thousand, eight hundred nineteen".