2278142 has 8 divisors (see below), whose sum is σ = 3452736. Its totient is φ = 1127232.

The previous prime is 2278141. The next prime is 2278181. The reversal of 2278142 is 2418722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278141) 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, 5678 + ... + 6065.

It is an arithmetic number, because the mean of its divisors is an integer number (431592).

2^2278142 is an apocalyptic number.

2278142 is a deficient number, since it is larger than the sum of its proper divisors (1174594).

2278142 is a wasteful number, since it uses less digits than its factorization.

2278142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11842.

The product of its digits is 1792, while the sum is 26.

The square root of 2278142 is about 1509.3515163805. The cubic root of 2278142 is about 131.5811255162.

The spelling of 2278142 in words is "two million, two hundred seventy-eight thousand, one hundred forty-two".