2212439 has 16 divisors (see below), whose sum is σ = 2488320. Its totient is φ = 1958880.

The previous prime is 2212433. The next prime is 2212447. The reversal of 2212439 is 9342122.

2212439 = 252² + 253² + ... + 282².

It is a cyclic number.

It is not a de Polignac number, because 2212439 - 2⁸ = 2212183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212433) 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, 20624 + ... + 20730.

It is an arithmetic number, because the mean of its divisors is an integer number (155520).

2^2212439 is an apocalyptic number.

2212439 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2212439 is a deficient number, since it is larger than the sum of its proper divisors (275881).

2212439 is a wasteful number, since it uses less digits than its factorization.

2212439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its digits is 864, while the sum is 23.

The square root of 2212439 is about 1487.4269729973. The cubic root of 2212439 is about 130.3038062259.

The spelling of 2212439 in words is "two million, two hundred twelve thousand, four hundred thirty-nine".