1129744216 has 16 divisors (see below), whose sum is σ = 2122912440. Its totient is φ = 563634240.

The previous prime is 1129744201. The next prime is 1129744219. The reversal of 1129744216 is 6124479211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129744219) 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, 150850 + ... + 158161.

Almost surely, 2^1129744216 is an apocalyptic number.

It is an amenable number.

1129744216 is a deficient number, since it is larger than the sum of its proper divisors (993168224).

1129744216 is a wasteful number, since it uses less digits than its factorization.

1129744216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309474 (or 309470 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 1129744216 is about 33611.6678550768. The cubic root of 1129744216 is about 1041.5018415204.

The spelling of 1129744216 in words is "one billion, one hundred twenty-nine million, seven hundred forty-four thousand, two hundred sixteen".