1145774784 has 224 divisors, whose sum is σ = 3979468800. Its totient is φ = 281871360.

The previous prime is 1145774771. The next prime is 1145774797. The reversal of 1145774784 is 4874775411.

It is an interprime number because it is at equal distance from previous prime (1145774771) and next prime (1145774797).

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

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 278857 + ... + 282935.

Almost surely, 2^1145774784 is an apocalyptic number.

1145774784 is a gapful number since it is divisible by the number (14) 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 1145774784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1989734400).

1145774784 is an abundant number, since it is smaller than the sum of its proper divisors (2833694016).

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

1145774784 is a wasteful number, since it uses less digits than its factorization.

1145774784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131 (or 4121 counting only the distinct ones).

The product of its digits is 878080, while the sum is 48.

The square root of 1145774784 is about 33849.2951773002. The cubic root of 1145774784 is about 1046.4048728369.

The spelling of 1145774784 in words is "one billion, one hundred forty-five million, seven hundred seventy-four thousand, seven hundred eighty-four".