40845481 has 4 divisors (see below), whose sum is σ = 41008464. Its totient is φ = 40682500.

The previous prime is 40845451. The next prime is 40845487. The reversal of 40845481 is 18454804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40845481 - 2⁷ = 40845353 is a prime.

It is a super-2 number, since 2×40845481² = 3336706636242722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40845487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81115 + ... + 81616.

It is an arithmetic number, because the mean of its divisors is an integer number (10252116).

Almost surely, 2^40845481 is an apocalyptic number.

It is an amenable number.

40845481 is a deficient number, since it is larger than the sum of its proper divisors (162983).

40845481 is a wasteful number, since it uses less digits than its factorization.

40845481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162982.

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 40845481 is about 6391.0469408384. The cubic root of 40845481 is about 344.3879957173.

The spelling of 40845481 in words is "forty million, eight hundred forty-five thousand, four hundred eighty-one".