1422821379 has 12 divisors (see below), whose sum is σ = 2206825224. Its totient is φ = 813040704.

The previous prime is 1422821371. The next prime is 1422821381. The reversal of 1422821379 is 9731282241.

It is not a de Polignac number, because 1422821379 - 2³ = 1422821371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1422821371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4839382 + ... + 4839675.

It is an arithmetic number, because the mean of its divisors is an integer number (183902102).

Almost surely, 2^1422821379 is an apocalyptic number.

1422821379 is a deficient number, since it is larger than the sum of its proper divisors (784003845).

1422821379 is an equidigital number, since it uses as much as digits as its factorization.

1422821379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9679074 (or 9679067 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 1422821379 is about 37720.3045984520. The cubic root of 1422821379 is about 1124.7347862721.

The spelling of 1422821379 in words is "one billion, four hundred twenty-two million, eight hundred twenty-one thousand, three hundred seventy-nine".