1152556340 has 144 divisors (see below), whose sum is σ = 2800163520. Its totient is φ = 397163520.

The previous prime is 1152556337. The next prime is 1152556351. The reversal of 1152556340 is 436552511.

It is a super-2 number, since 2×1152556340² = 2656772233748391200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1152556297 and 1152556306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8412752 + ... + 8412888.

It is an arithmetic number, because the mean of its divisors is an integer number (19445580).

Almost surely, 2^1152556340 is an apocalyptic number.

1152556340 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 1152556340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400081760).

1152556340 is an abundant number, since it is smaller than the sum of its proper divisors (1647607180).

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

1152556340 is a wasteful number, since it uses less digits than its factorization.

1152556340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1152556340 is about 33949.3201699239. The cubic root of 1152556340 is about 1048.4652832183.

The spelling of 1152556340 in words is "one billion, one hundred fifty-two million, five hundred fifty-six thousand, three hundred forty".