40045011 has 16 divisors (see below), whose sum is σ = 54587520. Its totient is φ = 26104640.

The previous prime is 40045009. The next prime is 40045037. The reversal of 40045011 is 11054004.

It is a cyclic number.

It is not a de Polignac number, because 40045011 - 2¹ = 40045009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40005011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40756 + ... + 41726.

It is an arithmetic number, because the mean of its divisors is an integer number (3411720).

Almost surely, 2^40045011 is an apocalyptic number.

40045011 is a deficient number, since it is larger than the sum of its proper divisors (14542509).

40045011 is a wasteful number, since it uses less digits than its factorization.

40045011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 40045011 is about 6328.1127518400. The cubic root of 40045011 is about 342.1234207944.

Adding to 40045011 its reverse (11054004), we get a palindrome (51099015).

The spelling of 40045011 in words is "forty million, forty-five thousand, eleven".