1115552380 has 24 divisors (see below), whose sum is σ = 2366815248. Its totient is φ = 441619968.

The previous prime is 1115552369. The next prime is 1115552387. The reversal of 1115552380 is 832555111.

It is a super-2 number, since 2×1115552380² = 2488914225047328800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115552387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285574 + ... + 289453.

It is an arithmetic number, because the mean of its divisors is an integer number (98617302).

Almost surely, 2^1115552380 is an apocalyptic number.

1115552380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115552380 is an abundant number, since it is smaller than the sum of its proper divisors (1251262868).

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

1115552380 is a wasteful number, since it uses less digits than its factorization.

1115552380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575133 (or 575131 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 1115552380 is about 33399.8859279489. The cubic root of 1115552380 is about 1037.1223395368.

The spelling of 1115552380 in words is "one billion, one hundred fifteen million, five hundred fifty-two thousand, three hundred eighty".