2278972 has 12 divisors (see below), whose sum is σ = 4025560. Its totient is φ = 1128816.

The previous prime is 2278967. The next prime is 2278979. The reversal of 2278972 is 2798722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178 + ... + 3049.

2^2278972 is an apocalyptic number.

It is an amenable number.

2278972 is a deficient number, since it is larger than the sum of its proper divisors (1746588).

2278972 is a wasteful number, since it uses less digits than its factorization.

2278972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340 (or 5338 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 2278972 is about 1509.6264438595. The cubic root of 2278972 is about 131.5971033136.

The spelling of 2278972 in words is "two million, two hundred seventy-eight thousand, nine hundred seventy-two".