2220392 has 8 divisors (see below), whose sum is σ = 4163250. Its totient is φ = 1110192.

The previous prime is 2220389. The next prime is 2220403. The reversal of 2220392 is 2930222.

It can be written as a sum of positive squares in only one way, i.e., 2114116 + 106276 = 1454^2 + 326^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138767 + ... + 138782.

2^2220392 is an apocalyptic number.

It is an amenable number.

2220392 is a deficient number, since it is larger than the sum of its proper divisors (1942858).

2220392 is a wasteful number, since it uses less digits than its factorization.

2220392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277555 (or 277551 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2220392 is about 1490.0979833555. The cubic root of 2220392 is about 130.4597528104.

The spelling of 2220392 in words is "two million, two hundred twenty thousand, three hundred ninety-two".