1163408240 has 40 divisors (see below), whose sum is σ = 2711427648. Its totient is φ = 464244480.

The previous prime is 1163408231. The next prime is 1163408291. The reversal of 1163408240 is 428043611.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16409 + ... + 50951.

Almost surely, 2^1163408240 is an apocalyptic number.

1163408240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163408240 is an abundant number, since it is smaller than the sum of its proper divisors (1548019408).

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

1163408240 is a wasteful number, since it uses less digits than its factorization.

1163408240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34977 (or 34971 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1163408240 is about 34108.7707195671. The cubic root of 1163408240 is about 1051.7456193626.

The spelling of 1163408240 in words is "one billion, one hundred sixty-three million, four hundred eight thousand, two hundred forty".