40034509 has 8 divisors (see below), whose sum is σ = 40828320. Its totient is φ = 39244656.

The previous prime is 40034503. The next prime is 40034531. The reversal of 40034509 is 90543004.

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

It is a cyclic number.

It is not a de Polignac number, because 40034509 - 2⁷ = 40034381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40034503) 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, 26827 + ... + 28279.

It is an arithmetic number, because the mean of its divisors is an integer number (5103540).

Almost surely, 2^40034509 is an apocalyptic number.

It is an amenable number.

40034509 is a deficient number, since it is larger than the sum of its proper divisors (793811).

40034509 is a wasteful number, since it uses less digits than its factorization.

40034509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40034509 is about 6327.2829081684. The cubic root of 40034509 is about 342.0935103327.

The spelling of 40034509 in words is "forty million, thirty-four thousand, five hundred nine".