40845280 has 48 divisors (see below), whose sum is σ = 110285280. Its totient is φ = 14003712.

The previous prime is 40845251. The next prime is 40845281. The reversal of 40845280 is 8254804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40845281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17115 + ... + 19354.

It is an arithmetic number, because the mean of its divisors is an integer number (2297610).

Almost surely, 2^40845280 is an apocalyptic number.

40845280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40845280 is an abundant number, since it is smaller than the sum of its proper divisors (69440000).

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

40845280 is a wasteful number, since it uses less digits than its factorization.

40845280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36491 (or 36483 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 40845280 is about 6391.0312156959. The cubic root of 40845280 is about 344.3874308070.

The spelling of 40845280 in words is "forty million, eight hundred forty-five thousand, two hundred eighty".