1124021644 has 12 divisors (see below), whose sum is σ = 1987317304. Its totient is φ = 556216704.

The previous prime is 1124021641. The next prime is 1124021671. The reversal of 1124021644 is 4461204211.

It is not an unprimeable number, because it can be changed into a prime (1124021641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448094 + ... + 1448869.

Almost surely, 2^1124021644 is an apocalyptic number.

It is an amenable number.

1124021644 is a deficient number, since it is larger than the sum of its proper divisors (863295660).

1124021644 is a wasteful number, since it uses less digits than its factorization.

1124021644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897064 (or 2897062 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1124021644 is about 33526.4320201241. The cubic root of 1124021644 is about 1039.7403333475.

Adding to 1124021644 its reverse (4461204211), we get a palindrome (5585225855).

The spelling of 1124021644 in words is "one billion, one hundred twenty-four million, twenty-one thousand, six hundred forty-four".