1143372672 has 320 divisors, whose sum is σ = 3887730000. Its totient is φ = 330448896.

The previous prime is 1143372667. The next prime is 1143372683. The reversal of 1143372672 is 2762733411.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2291079 + ... + 2291577.

Almost surely, 2^1143372672 is an apocalyptic number.

1143372672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143372672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1943865000).

1143372672 is an abundant number, since it is smaller than the sum of its proper divisors (2744357328).

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

1143372672 is a wasteful number, since it uses less digits than its factorization.

1143372672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 534 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 1143372672 is about 33813.7941083221. The cubic root of 1143372672 is about 1045.6731000787.

The spelling of 1143372672 in words is "one billion, one hundred forty-three million, three hundred seventy-two thousand, six hundred seventy-two".