2239812 has 60 divisors (see below), whose sum is σ = 6071296. Its totient is φ = 719280.

The previous prime is 2239807. The next prime is 2239847. The reversal of 2239812 is 2189322.

It is a happy number.

It is a super-3 number, since 3×2239812³ = 33709782933315105984, which contains 333 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9933 + ... + 10155.

2^2239812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2239812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3035648).

2239812 is an abundant number, since it is smaller than the sum of its proper divisors (3831484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2239812 is a wasteful number, since it uses less digits than its factorization.

2239812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 259 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2239812 is about 1496.6001469999. The cubic root of 2239812 is about 130.8389918262.

The spelling of 2239812 in words is "two million, two hundred thirty-nine thousand, eight hundred twelve".