1144663416 has 48 divisors (see below), whose sum is σ = 3338604360. Its totient is φ = 352203840.

The previous prime is 1144663381. The next prime is 1144663439. The reversal of 1144663416 is 6143664411.

1144663416 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 6 + 634 + 16 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 610530 + ... + 612401.

Almost surely, 2^1144663416 is an apocalyptic number.

It is an amenable number.

1144663416 is an abundant number, since it is smaller than the sum of its proper divisors (2193940944).

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

1144663416 is a wasteful number, since it uses less digits than its factorization.

1144663416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222956 (or 1222949 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 1144663416 is about 33832.8747817858. The cubic root of 1144663416 is about 1046.0664360237.

The spelling of 1144663416 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, four hundred sixteen".