40452549 has 4 divisors (see below), whose sum is σ = 53936736. Its totient is φ = 26968364.

The previous prime is 40452541. The next prime is 40452563. The reversal of 40452549 is 94525404.

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 40452549 - 2³ = 40452541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40452541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6742089 + ... + 6742094.

It is an arithmetic number, because the mean of its divisors is an integer number (13484184).

Almost surely, 2^40452549 is an apocalyptic number.

It is an amenable number.

40452549 is a deficient number, since it is larger than the sum of its proper divisors (13484187).

40452549 is a wasteful number, since it uses less digits than its factorization.

40452549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13484186.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 40452549 is about 6360.2318353972. The cubic root of 40452549 is about 343.2801022406.

The spelling of 40452549 in words is "forty million, four hundred fifty-two thousand, five hundred forty-nine".