40511066 has 4 divisors (see below), whose sum is σ = 60766602. Its totient is φ = 20255532.

The previous prime is 40511063. The next prime is 40511069. The reversal of 40511066 is 66011504.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40511063) and next prime (40511069).

It can be written as a sum of positive squares in only one way, i.e., 38875225 + 1635841 = 6235^2 + 1279^2 .

It is a super-2 number, since 2×40511066² = 3282292936912712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40511063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10127765 + ... + 10127768.

Almost surely, 2^40511066 is an apocalyptic number.

40511066 is a deficient number, since it is larger than the sum of its proper divisors (20255536).

40511066 is a wasteful number, since it uses less digits than its factorization.

40511066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20255535.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 40511066 is about 6364.8303983688. The cubic root of 40511066 is about 343.4455474679.

The spelling of 40511066 in words is "forty million, five hundred eleven thousand, sixty-six".