1261624422 has 32 divisors (see below), whose sum is σ = 2622182400. Its totient is φ = 404235360.

The previous prime is 1261624411. The next prime is 1261624447. The reversal of 1261624422 is 2244261621.

1261624422 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1261624422.

It is a congruent number.

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, 4953 + ... + 50475.

It is an arithmetic number, because the mean of its divisors is an integer number (81943200).

Almost surely, 2^1261624422 is an apocalyptic number.

1261624422 is an abundant number, since it is smaller than the sum of its proper divisors (1360557978).

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

1261624422 is a wasteful number, since it uses less digits than its factorization.

1261624422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45708.

The product of its digits is 9216, while the sum is 30.

The square root of 1261624422 is about 35519.3527812656. The cubic root of 1261624422 is about 1080.5462548695.

The spelling of 1261624422 in words is "one billion, two hundred sixty-one million, six hundred twenty-four thousand, four hundred twenty-two".