1422624424644 has 18 divisors (see below), whose sum is σ = 3596078406830. Its totient is φ = 474208141536.

The previous prime is 1422624424579. The next prime is 1422624424657. The reversal of 1422624424644 is 4464244262241.

1422624424644 is a `hidden beast` number, since 14 + 2 + 2 + 624 + 4 + 2 + 4 + 6 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1420983202500 + 1641222144 = 1192050^2 + 40512^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1422624424644.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19758672529 + ... + 19758672600.

Almost surely, 2^{1422624424644} is an apocalyptic number.

It is an amenable number.

1422624424644 is an abundant number, since it is smaller than the sum of its proper divisors (2173453982186).

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

1422624424644 is a wasteful number, since it uses less digits than its factorization.

1422624424644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39517345139 (or 39517345134 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 45.

Adding to 1422624424644 its reverse (4464244262241), we get a palindrome (5886868686885).

The spelling of 1422624424644 in words is "one trillion, four hundred twenty-two billion, six hundred twenty-four million, four hundred twenty-four thousand, six hundred forty-four".