40305549 has 8 divisors (see below), whose sum is σ = 55474432. Its totient is φ = 26003520.

The previous prime is 40305523. The next prime is 40305553. The reversal of 40305549 is 94550304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40305549 - 2¹² = 40301453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40305569) 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, 216604 + ... + 216789.

It is an arithmetic number, because the mean of its divisors is an integer number (6934304).

Almost surely, 2^40305549 is an apocalyptic number.

It is an amenable number.

40305549 is a deficient number, since it is larger than the sum of its proper divisors (15168883).

40305549 is a wasteful number, since it uses less digits than its factorization.

40305549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433427.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 40305549 is about 6348.6651352863. The cubic root of 40305549 is about 342.8637838247.

The spelling of 40305549 in words is "forty million, three hundred five thousand, five hundred forty-nine".