2214645 has 16 divisors (see below), whose sum is σ = 3566592. Its totient is φ = 1173440.

The previous prime is 2214637. The next prime is 2214661. The reversal of 2214645 is 5464122.

It is not a de Polignac number, because 2214645 - 2³ = 2214637 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2479 + ... + 3251.

It is an arithmetic number, because the mean of its divisors is an integer number (222912).

2^2214645 is an apocalyptic number.

It is an amenable number.

2214645 is a deficient number, since it is larger than the sum of its proper divisors (1351947).

2214645 is a wasteful number, since it uses less digits than its factorization.

2214645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

The product of its digits is 1920, while the sum is 24.

The square root of 2214645 is about 1488.1683372522. The cubic root of 2214645 is about 130.3471000314.

Adding to 2214645 its product of digits (1920), we get a triangular number (2216565 = T₂₁₀₅).

Adding to 2214645 its reverse (5464122), we get a palindrome (7678767).

The spelling of 2214645 in words is "two million, two hundred fourteen thousand, six hundred forty-five".