1522222378 has 8 divisors (see below), whose sum is σ = 2285484768. Its totient is φ = 760394124.

The previous prime is 1522222369. The next prime is 1522222451. The reversal of 1522222378 is 8732222251.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355876 + ... + 360127.

It is an arithmetic number, because the mean of its divisors is an integer number (285685596).

Almost surely, 2^1522222378 is an apocalyptic number.

1522222378 is a deficient number, since it is larger than the sum of its proper divisors (763262390).

1522222378 is a wasteful number, since it uses less digits than its factorization.

1522222378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717068.

The product of its digits is 26880, while the sum is 34.

The square root of 1522222378 is about 39015.6683654144. The cubic root of 1522222378 is about 1150.3395035425.

The spelling of 1522222378 in words is "one billion, five hundred twenty-two million, two hundred twenty-two thousand, three hundred seventy-eight".