1156732040 has 64 divisors (see below), whose sum is σ = 2675635200. Its totient is φ = 449849088.

The previous prime is 1156732033. The next prime is 1156732051. The reversal of 1156732040 is 402376511.

It is a junction number, because it is equal to n+sod(n) for n = 1156731994 and 1156732012.

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, 293201 + ... + 297119.

It is an arithmetic number, because the mean of its divisors is an integer number (41806800).

Almost surely, 2^1156732040 is an apocalyptic number.

1156732040 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 1156732040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337817600).

1156732040 is an abundant number, since it is smaller than the sum of its proper divisors (1518903160).

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

1156732040 is a wasteful number, since it uses less digits than its factorization.

1156732040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134 (or 4130 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1156732040 is about 34010.7635903694. The cubic root of 1156732040 is about 1049.7299502041.

The spelling of 1156732040 in words is "one billion, one hundred fifty-six million, seven hundred thirty-two thousand, forty".