2122427400 has 192 divisors, whose sum is σ = 6923128320. Its totient is φ = 537139200.

The previous prime is 2122427389. The next prime is 2122427423. The reversal of 2122427400 is 47242212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 984724 + ... + 986876.

It is an arithmetic number, because the mean of its divisors is an integer number (36057960).

Almost surely, 2^2122427400 is an apocalyptic number.

2122427400 is a gapful number since it is divisible by the number (20) 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 2122427400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3461564160).

2122427400 is an abundant number, since it is smaller than the sum of its proper divisors (4800700920).

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

2122427400 is a wasteful number, since it uses less digits than its factorization.

2122427400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 2247 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 2122427400 is about 46069.8100712386. The cubic root of 2122427400 is about 1285.1217717825.

Adding to 2122427400 its reverse (47242212), we get a palindrome (2169669612).

The spelling of 2122427400 in words is "two billion, one hundred twenty-two million, four hundred twenty-seven thousand, four hundred".