40980805 has 8 divisors (see below), whose sum is σ = 49361400. Its totient is φ = 32661696.

The previous prime is 40980803. The next prime is 40980817. The reversal of 40980805 is 50808904.

It can be written as a sum of positive squares in 4 ways, for example, as 199809 + 40780996 = 447^2 + 6386^2 .

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 40980805 - 2¹ = 40980803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40980803) 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 7 ways as a sum of consecutive naturals, for example, 13890 + ... + 16579.

It is an arithmetic number, because the mean of its divisors is an integer number (6170175).

Almost surely, 2^40980805 is an apocalyptic number.

It is an amenable number.

40980805 is a deficient number, since it is larger than the sum of its proper divisors (8380595).

40980805 is a wasteful number, since it uses less digits than its factorization.

40980805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30743.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 40980805 is about 6401.6251842794. The cubic root of 40980805 is about 344.7679038254.

The spelling of 40980805 in words is "forty million, nine hundred eighty thousand, eight hundred five".