1422784920 has 32 divisors (see below), whose sum is σ = 4268355120. Its totient is φ = 379409280.

The previous prime is 1422784871. The next prime is 1422784943. The reversal of 1422784920 is 294872241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5928151 + ... + 5928390.

Almost surely, 2^1422784920 is an apocalyptic number.

1422784920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422784920 is an abundant number, since it is smaller than the sum of its proper divisors (2845570200).

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

1422784920 is a wasteful number, since it uses less digits than its factorization.

1422784920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11856555 (or 11856551 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1422784920 is about 37719.8213145290. The cubic root of 1422784920 is about 1124.7251792906.

The spelling of 1422784920 in words is "one billion, four hundred twenty-two million, seven hundred eighty-four thousand, nine hundred twenty".