1080831540 has 48 divisors (see below), whose sum is σ = 3029225472. Its totient is φ = 287945856.

The previous prime is 1080831533. The next prime is 1080831569. The reversal of 1080831540 is 451380801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1080831498 and 1080831507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58957 + ... + 75083.

It is an arithmetic number, because the mean of its divisors is an integer number (63108864).

Almost surely, 2^1080831540 is an apocalyptic number.

1080831540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1080831540 is an abundant number, since it is smaller than the sum of its proper divisors (1948393932).

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

1080831540 is a wasteful number, since it uses less digits than its factorization.

1080831540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17256 (or 17254 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1080831540 is about 32876.0024942206. The cubic root of 1080831540 is about 1026.2488177511.

The spelling of 1080831540 in words is "one billion, eighty million, eight hundred thirty-one thousand, five hundred forty".