1145773888 has 224 divisors, whose sum is σ = 2977579008. Its totient is φ = 425779200.

The previous prime is 1145773879. The next prime is 1145773913. The reversal of 1145773888 is 8883775411.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5430103 + ... + 5430313.

Almost surely, 2^1145773888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145773888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488789504).

1145773888 is an abundant number, since it is smaller than the sum of its proper divisors (1831805120).

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

1145773888 is a wasteful number, since it uses less digits than its factorization.

1145773888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 291 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 52.

The square root of 1145773888 is about 33849.2819421624. The cubic root of 1145773888 is about 1046.4046000727.

The spelling of 1145773888 in words is "one billion, one hundred forty-five million, seven hundred seventy-three thousand, eight hundred eighty-eight".