1163532840 has 64 divisors (see below), whose sum is σ = 3493488960. Its totient is φ = 310018560.

The previous prime is 1163532833. The next prime is 1163532841. The reversal of 1163532840 is 482353611.

It is not an unprimeable number, because it can be changed into a prime (1163532841) 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, 174447 + ... + 180993.

It is an arithmetic number, because the mean of its divisors is an integer number (54585765).

Almost surely, 2^1163532840 is an apocalyptic number.

1163532840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163532840 is an abundant number, since it is smaller than the sum of its proper divisors (2329956120).

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

1163532840 is a wasteful number, since it uses less digits than its factorization.

1163532840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042 (or 8038 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1163532840 is about 34110.5971803485. The cubic root of 1163532840 is about 1051.7831650328.

The spelling of 1163532840 in words is "one billion, one hundred sixty-three million, five hundred thirty-two thousand, eight hundred forty".