1145959680 has 72 divisors (see below), whose sum is σ = 3659920992. Its totient is φ = 305588224.

The previous prime is 1145959663. The next prime is 1145959691. The reversal of 1145959680 is 869595411.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 145374 + ... + 153053.

It is an arithmetic number, because the mean of its divisors is an integer number (50832236).

Almost surely, 2^1145959680 is an apocalyptic number.

1145959680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145959680 is an abundant number, since it is smaller than the sum of its proper divisors (2513961312).

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

1145959680 is an equidigital number, since it uses as much as digits as its factorization.

1145959680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298451 (or 298437 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 48.

The square root of 1145959680 is about 33852.0262318225. The cubic root of 1145959680 is about 1046.4611566348.

The spelling of 1145959680 in words is "one billion, one hundred forty-five million, nine hundred fifty-nine thousand, six hundred eighty".