2218372 has 24 divisors (see below), whose sum is σ = 4297496. Its totient is φ = 995328.

The previous prime is 2218367. The next prime is 2218423. The reversal of 2218372 is 2738122.

It can be written as a sum of positive squares in 4 ways, for example, as 665856 + 1552516 = 816^2 + 1246^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348 + ... + 2500.

2^2218372 is an apocalyptic number.

It is an amenable number.

2218372 is a deficient number, since it is larger than the sum of its proper divisors (2079124).

2218372 is a wasteful number, since it uses less digits than its factorization.

2218372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1205 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 2218372 is about 1489.4200213506. The cubic root of 2218372 is about 130.4201789190.

The spelling of 2218372 in words is "two million, two hundred eighteen thousand, three hundred seventy-two".