2278494 has 12 divisors (see below), whose sum is σ = 4936776. Its totient is φ = 759492.

The previous prime is 2278487. The next prime is 2278517. The reversal of 2278494 is 4948722.

It is a super-3 number, since 3×2278494³ = 35486643416251733352, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 2²¹ + 7⁶ + 8³ + 4 + 9⁵ + 4⁶ .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63274 + ... + 63309.

It is an arithmetic number, because the mean of its divisors is an integer number (411398).

2^2278494 is an apocalyptic number.

2278494 is an abundant number, since it is smaller than the sum of its proper divisors (2658282).

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

2278494 is a wasteful number, since it uses less digits than its factorization.

2278494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126591 (or 126588 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2278494 is about 1509.4681182456. The cubic root of 2278494 is about 131.5879021162.

It can be divided in two parts, 2278 and 494, that added together give a palindrome (2772).

The spelling of 2278494 in words is "two million, two hundred seventy-eight thousand, four hundred ninety-four".