1422602640 has 120 divisors (see below), whose sum is σ = 4906789368. Its totient is φ = 369100800.

The previous prime is 1422602633. The next prime is 1422602659. The reversal of 1422602640 is 462062241.

1422602640 is a `hidden beast` number, since 14 + 2 + 2 + 6 + 0 + 2 + 640 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 191434896 + 1231167744 = 13836^2 + 35088^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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 23 ways as a sum of consecutive naturals, for example, 61 + ... + 53340.

Almost surely, 2^1422602640 is an apocalyptic number.

1422602640 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 1422602640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2453394684).

1422602640 is an abundant number, since it is smaller than the sum of its proper divisors (3484186728).

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

1422602640 is a wasteful number, since it uses less digits than its factorization.

1422602640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53457 (or 53448 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1422602640 is about 37717.4050008746. The cubic root of 1422602640 is about 1124.6771458742.

Adding to 1422602640 its reverse (462062241), we get a palindrome (1884664881).

The spelling of 1422602640 in words is "one billion, four hundred twenty-two million, six hundred two thousand, six hundred forty".