1224642634 has 8 divisors (see below), whose sum is σ = 1945020708. Its totient is φ = 576302400.

The previous prime is 1224642611. The next prime is 1224642637. The reversal of 1224642634 is 4362464221.

It can be written as a sum of positive squares in 2 ways, for example, as 1079319609 + 145323025 = 32853^2 + 12055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 36018901 = 1224642634 / (1 + 2 + 2 + 4 + 6 + 4 + 2 + 6 + 3 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 1224642634.

It is not an unprimeable number, because it can be changed into a prime (1224642637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18009417 + ... + 18009484.

Almost surely, 2^1224642634 is an apocalyptic number.

1224642634 is a deficient number, since it is larger than the sum of its proper divisors (720378074).

1224642634 is a wasteful number, since it uses less digits than its factorization.

1224642634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36018920.

The product of its digits is 55296, while the sum is 34.

The square root of 1224642634 is about 34994.8943990406. The cubic root of 1224642634 is about 1069.8834222425.

The spelling of 1224642634 in words is "one billion, two hundred twenty-four million, six hundred forty-two thousand, six hundred thirty-four".