1422408278 has 8 divisors (see below), whose sum is σ = 2202438720. Its totient is φ = 688262040.

The previous prime is 1422408277. The next prime is 1422408293. The reversal of 1422408278 is 8728042241.

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 (1422408277) 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, 11470973 + ... + 11471096.

It is an arithmetic number, because the mean of its divisors is an integer number (275304840).

Almost surely, 2^1422408278 is an apocalyptic number.

1422408278 is a deficient number, since it is larger than the sum of its proper divisors (780030442).

1422408278 is a wasteful number, since it uses less digits than its factorization.

1422408278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22942102.

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 1422408278 is about 37714.8283570269. The cubic root of 1422408278 is about 1124.6259241559.

The spelling of 1422408278 in words is "one billion, four hundred twenty-two million, four hundred eight thousand, two hundred seventy-eight".