2698278 has 16 divisors (see below), whose sum is σ = 5887296. Its totient is φ = 817640.

The previous prime is 2698277. The next prime is 2698279. The reversal of 2698278 is 8728962.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2698277) and next prime (2698279).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2698273) 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, 20376 + ... + 20507.

It is an arithmetic number, because the mean of its divisors is an integer number (367956).

2^2698278 is an apocalyptic number.

2698278 is an abundant number, since it is smaller than the sum of its proper divisors (3189018).

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

2698278 is a wasteful number, since it uses less digits than its factorization.

2698278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40899.

The product of its digits is 96768, while the sum is 42.

The square root of 2698278 is about 1642.6436010285. The cubic root of 2698278 is about 139.2180556907.

The spelling of 2698278 in words is "two million, six hundred ninety-eight thousand, two hundred seventy-eight".