40469547 has 4 divisors (see below), whose sum is σ = 53959400. Its totient is φ = 26979696.

The previous prime is 40469543. The next prime is 40469549. The reversal of 40469547 is 74596404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40469547 - 2² = 40469543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40469543) 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, 6744922 + ... + 6744927.

It is an arithmetic number, because the mean of its divisors is an integer number (13489850).

Almost surely, 2^40469547 is an apocalyptic number.

40469547 is a deficient number, since it is larger than the sum of its proper divisors (13489853).

40469547 is a wasteful number, since it uses less digits than its factorization.

40469547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13489852.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 40469547 is about 6361.5679670974. The cubic root of 40469547 is about 343.3281771515.

The spelling of 40469547 in words is "forty million, four hundred sixty-nine thousand, five hundred forty-seven".