1163046640 has 40 divisors (see below), whose sum is σ = 3090382560. Its totient is φ = 398758656.

The previous prime is 1163046607. The next prime is 1163046659. The reversal of 1163046640 is 466403611.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037875 + ... + 1038994.

It is an arithmetic number, because the mean of its divisors is an integer number (77259564).

Almost surely, 2^1163046640 is an apocalyptic number.

1163046640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163046640 is an abundant number, since it is smaller than the sum of its proper divisors (1927335920).

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

1163046640 is a wasteful number, since it uses less digits than its factorization.

1163046640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076889 (or 2076883 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1163046640 is about 34103.4696182075. The cubic root of 1163046640 is about 1051.6366433926.

The spelling of 1163046640 in words is "one billion, one hundred sixty-three million, forty-six thousand, six hundred forty".