1125780460 has 192 divisors, whose sum is σ = 2987228160. Its totient is φ = 347627520.

The previous prime is 1125780413. The next prime is 1125780499. The reversal of 1125780460 is 640875211.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8099071 + ... + 8099209.

It is an arithmetic number, because the mean of its divisors is an integer number (15558480).

Almost surely, 2^1125780460 is an apocalyptic number.

1125780460 is a gapful number since it is divisible by the number (10) 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 1125780460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493614080).

1125780460 is an abundant number, since it is smaller than the sum of its proper divisors (1861447700).

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

1125780460 is a wasteful number, since it uses less digits than its factorization.

1125780460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1125780460 is about 33552.6520561341. The cubic root of 1125780460 is about 1040.2823629264.

The spelling of 1125780460 in words is "one billion, one hundred twenty-five million, seven hundred eighty thousand, four hundred sixty".