40005497 has 4 divisors (see below), whose sum is σ = 45720576. Its totient is φ = 34290420.

The previous prime is 40005479. The next prime is 40005541. The reversal of 40005497 is 79450004.

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 40005497 - 2¹⁴ = 39989113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40005467) 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, 2857529 + ... + 2857542.

It is an arithmetic number, because the mean of its divisors is an integer number (11430144).

Almost surely, 2^40005497 is an apocalyptic number.

It is an amenable number.

40005497 is a deficient number, since it is larger than the sum of its proper divisors (5715079).

40005497 is an equidigital number, since it uses as much as digits as its factorization.

40005497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715078.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 40005497 is about 6324.9898814148. The cubic root of 40005497 is about 342.0108548474.

The spelling of 40005497 in words is "forty million, five thousand, four hundred ninety-seven".