1153646040 has 64 divisors (see below), whose sum is σ = 3483912960. Its totient is φ = 305596800.

The previous prime is 1153646023. The next prime is 1153646077. The reversal of 1153646040 is 406463511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1153645989 and 1153646007.

It is a congruent number.

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, 13714 + ... + 49953.

It is an arithmetic number, because the mean of its divisors is an integer number (54436140).

Almost surely, 2^1153646040 is an apocalyptic number.

1153646040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153646040 is an abundant number, since it is smaller than the sum of its proper divisors (2330266920).

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

1153646040 is a wasteful number, since it uses less digits than its factorization.

1153646040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63832 (or 63828 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1153646040 is about 33965.3653005529. The cubic root of 1153646040 is about 1048.7956077039.

The spelling of 1153646040 in words is "one billion, one hundred fifty-three million, six hundred forty-six thousand, forty".