1422122240 has 288 divisors, whose sum is σ = 4351463424. Its totient is φ = 432414720.

The previous prime is 1422122239. The next prime is 1422122281. The reversal of 1422122240 is 422212241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 4632167 + ... + 4632473.

It is an arithmetic number, because the mean of its divisors is an integer number (15109248).

Almost surely, 2^1422122240 is an apocalyptic number.

1422122240 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 1422122240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2175731712).

1422122240 is an abundant number, since it is smaller than the sum of its proper divisors (2929341184).

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

1422122240 is a wasteful number, since it uses less digits than its factorization.

1422122240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1422122240 is about 37711.0360504720. The cubic root of 1422122240 is about 1124.5505338664.

Adding to 1422122240 its reverse (422212241), we get a palindrome (1844334481).

Subtracting from 1422122240 its reverse (422212241), we obtain a palindrome (999909999).

The spelling of 1422122240 in words is "one billion, four hundred twenty-two million, one hundred twenty-two thousand, two hundred forty".