1422779904 has 600 divisors, whose sum is σ = 5436549360. Its totient is φ = 362299392.

The previous prime is 1422779903. The next prime is 1422779923. The reversal of 1422779904 is 4099772241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1422779904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422779903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 49061362 + ... + 49061390.

Almost surely, 2^1422779904 is an apocalyptic number.

1422779904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422779904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2718274680).

1422779904 is an abundant number, since it is smaller than the sum of its proper divisors (4013769456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1422779904 is an equidigital number, since it uses as much as digits as its factorization.

1422779904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1422779904 is about 37719.7548242297. The cubic root of 1422779904 is about 1124.7238575570.

The spelling of 1422779904 in words is "one billion, four hundred twenty-two million, seven hundred seventy-nine thousand, nine hundred four".