2278260 has 48 divisors (see below), whose sum is σ = 7089600. Its totient is φ = 607392.

The previous prime is 2278259. The next prime is 2278261. The reversal of 2278260 is 628722.

It is an interprime number because it is at equal distance from previous prime (2278259) and next prime (2278261).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1570 + ... + 2649.

It is an arithmetic number, because the mean of its divisors is an integer number (147700).

2^2278260 is an apocalyptic number.

2278260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2278260 is an abundant number, since it is smaller than the sum of its proper divisors (4811340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2278260 is a wasteful number, since it uses less digits than its factorization.

2278260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237 (or 4229 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2278260 is about 1509.3906055094. The cubic root of 2278260 is about 131.5833972951.

The spelling of 2278260 in words is "two million, two hundred seventy-eight thousand, two hundred sixty".