1159441780 has 48 divisors (see below), whose sum is σ = 2835181440. Its totient is φ = 390019968.

The previous prime is 1159441763. The next prime is 1159441783. The reversal of 1159441780 is 871449511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159441783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70710 + ... + 85549.

It is an arithmetic number, because the mean of its divisors is an integer number (59066280).

Almost surely, 2^1159441780 is an apocalyptic number.

1159441780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1159441780 is an abundant number, since it is smaller than the sum of its proper divisors (1675739660).

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

1159441780 is a wasteful number, since it uses less digits than its factorization.

1159441780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156328 (or 156326 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 1159441780 is about 34050.5767939399. The cubic root of 1159441780 is about 1050.5490039026.

The spelling of 1159441780 in words is "one billion, one hundred fifty-nine million, four hundred forty-one thousand, seven hundred eighty".