1422944820 has 288 divisors, whose sum is σ = 5004679680. Its totient is φ = 336389760.

The previous prime is 1422944801. The next prime is 1422944821. The reversal of 1422944820 is 284492241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422944821) 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 95 ways as a sum of consecutive naturals, for example, 2298471 + ... + 2299089.

It is an arithmetic number, because the mean of its divisors is an integer number (17377360).

Almost surely, 2^1422944820 is an apocalyptic number.

1422944820 is a gapful number since it is divisible by the number (10) 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 1422944820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2502339840).

1422944820 is an abundant number, since it is smaller than the sum of its proper divisors (3581734860).

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

1422944820 is a wasteful number, since it uses less digits than its factorization.

1422944820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 1422944820 is about 37721.9408302383. The cubic root of 1422944820 is about 1124.7673118755.

It can be divided in two parts, 14229 and 44820, that added together give a 10-th power (59049 = 3¹⁰).

The spelling of 1422944820 in words is "one billion, four hundred twenty-two million, nine hundred forty-four thousand, eight hundred twenty".