1145285340 has 48 divisors (see below), whose sum is σ = 3210762240. Its totient is φ = 305032000.

The previous prime is 1145285333. The next prime is 1145285369. The reversal of 1145285340 is 435825411.

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, 38965 + ... + 61715.

It is an arithmetic number, because the mean of its divisors is an integer number (66890880).

Almost surely, 2^1145285340 is an apocalyptic number.

1145285340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145285340 is an abundant number, since it is smaller than the sum of its proper divisors (2065476900).

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

1145285340 is a wasteful number, since it uses less digits than its factorization.

1145285340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23602 (or 23600 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 1145285340 is about 33842.0646533275. The cubic root of 1145285340 is about 1046.2558529953.

The spelling of 1145285340 in words is "one billion, one hundred forty-five million, two hundred eighty-five thousand, three hundred forty".