40340801 has 4 divisors (see below), whose sum is σ = 40483632. Its totient is φ = 40197972.

The previous prime is 40340771. The next prime is 40340821. The reversal of 40340801 is 10804304.

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 a de Polignac number, because none of the positive numbers 2^k-40340801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40340821) 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, 70991 + ... + 71556.

It is an arithmetic number, because the mean of its divisors is an integer number (10120908).

Almost surely, 2^40340801 is an apocalyptic number.

It is an amenable number.

40340801 is a deficient number, since it is larger than the sum of its proper divisors (142831).

40340801 is a wasteful number, since it uses less digits than its factorization.

40340801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142830.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 40340801 is about 6351.4408601513. The cubic root of 40340801 is about 342.9637130932.

The spelling of 40340801 in words is "forty million, three hundred forty thousand, eight hundred one".