2278252 has 24 divisors (see below), whose sum is σ = 4336640. Its totient is φ = 1043280.

The previous prime is 2278249. The next prime is 2278259. The reversal of 2278252 is 2528722.

It is a self number, because there is not a number n which added to its sum of digits gives 2278252.

It is not an unprimeable number, because it can be changed into a prime (2278259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1873 + ... + 2839.

2^2278252 is an apocalyptic number.

It is an amenable number.

2278252 is a deficient number, since it is larger than the sum of its proper divisors (2058388).

2278252 is a wasteful number, since it uses less digits than its factorization.

2278252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1019 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 2278252 is about 1509.3879554309. The cubic root of 2278252 is about 131.5832432787.

It can be divided in two parts, 2278 and 252, that multiplied together give a triangular number (574056 = T₁₀₇₁).

The spelling of 2278252 in words is "two million, two hundred seventy-eight thousand, two hundred fifty-two".