2278351 has 6 divisors (see below), whose sum is σ = 2311400. Its totient is φ = 2245716.

The previous prime is 2278343. The next prime is 2278361. The reversal of 2278351 is 1538722.

It is not a de Polignac number, because 2278351 - 2³ = 2278343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11350 + ... + 11548.

2^2278351 is an apocalyptic number.

2278351 is a deficient number, since it is larger than the sum of its proper divisors (33049).

2278351 is an equidigital number, since it uses as much as digits as its factorization.

2278351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 306 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 2278351 is about 1509.4207498242. The cubic root of 2278351 is about 131.5851492066.

The spelling of 2278351 in words is "two million, two hundred seventy-eight thousand, three hundred fifty-one".