1145567940 has 192 divisors, whose sum is σ = 3592028160. Its totient is φ = 270466560.

The previous prime is 1145567939. The next prime is 1145567953. The reversal of 1145567940 is 497655411.

It is a junction number, because it is equal to n+sod(n) for n = 1145567892 and 1145567901.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6621694 + ... + 6621866.

It is an arithmetic number, because the mean of its divisors is an integer number (18708480).

Almost surely, 2^1145567940 is an apocalyptic number.

1145567940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145567940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1796014080).

1145567940 is an abundant number, since it is smaller than the sum of its proper divisors (2446460220).

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

1145567940 is a wasteful number, since it uses less digits than its factorization.

1145567940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 1145567940 is about 33846.2396729681. The cubic root of 1145567940 is about 1046.3419007187.

The spelling of 1145567940 in words is "one billion, one hundred forty-five million, five hundred sixty-seven thousand, nine hundred forty".