1922855424 has 160 divisors (see below), whose sum is σ = 5991997440. Its totient is φ = 536481792.

The previous prime is 1922855401. The next prime is 1922855437. The reversal of 1922855424 is 4245582291.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460257 + ... + 464415.

It is an arithmetic number, because the mean of its divisors is an integer number (37449984).

Almost surely, 2^1922855424 is an apocalyptic number.

1922855424 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 1922855424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2995998720).

1922855424 is an abundant number, since it is smaller than the sum of its proper divisors (4069142016).

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

1922855424 is an equidigital number, since it uses as much as digits as its factorization.

1922855424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230 (or 4214 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 1922855424 is about 43850.3754145845. The cubic root of 1922855424 is about 1243.5088406818.

The spelling of 1922855424 in words is "one billion, nine hundred twenty-two million, eight hundred fifty-five thousand, four hundred twenty-four".