2278532 has 18 divisors (see below), whose sum is σ = 4080174. Its totient is φ = 1113280.

The previous prime is 2278519. The next prime is 2278543. The reversal of 2278532 is 2358722.

It can be written as a sum of positive squares in only one way, i.e., 1290496 + 988036 = 1136^2 + 994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2278495 and 2278504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20108 + ... + 20220.

2^2278532 is an apocalyptic number.

It is an amenable number.

2278532 is a deficient number, since it is larger than the sum of its proper divisors (1801642).

2278532 is a wasteful number, since it uses less digits than its factorization.

2278532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 186 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 2278532 is about 1509.4807054083. The cubic root of 2278532 is about 131.5886336392.

The spelling of 2278532 in words is "two million, two hundred seventy-eight thousand, five hundred thirty-two".