1111750380 has 384 divisors, whose sum is σ = 3973939200. Its totient is φ = 256048128.

The previous prime is 1111750357. The next prime is 1111750397. The reversal of 1111750380 is 830571111.

1111750380 is a `hidden beast` number, since 111 + 175 + 0 + 380 = 666.

It is a super-3 number, since 3×1111750380³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8753877 + ... + 8754003.

It is an arithmetic number, because the mean of its divisors is an integer number (10348800).

Almost surely, 2^1111750380 is an apocalyptic number.

1111750380 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 1111750380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1986969600).

1111750380 is an abundant number, since it is smaller than the sum of its proper divisors (2862188820).

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

1111750380 is a wasteful number, since it uses less digits than its factorization.

1111750380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

The square root of 1111750380 is about 33342.9209878199. The cubic root of 1111750380 is about 1035.9427662761.

The spelling of 1111750380 in words is "one billion, one hundred eleven million, seven hundred fifty thousand, three hundred eighty".