40277066 has 4 divisors (see below), whose sum is σ = 60415602. Its totient is φ = 20138532.

The previous prime is 40277051. The next prime is 40277077. The reversal of 40277066 is 66077204.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 40005625 + 271441 = 6325^2 + 521^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10069265 + ... + 10069268.

Almost surely, 2^40277066 is an apocalyptic number.

40277066 is a deficient number, since it is larger than the sum of its proper divisors (20138536).

40277066 is a wasteful number, since it uses less digits than its factorization.

40277066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20138535.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 40277066 is about 6346.4215113716. The cubic root of 40277066 is about 342.7830001550.

The spelling of 40277066 in words is "forty million, two hundred seventy-seven thousand, sixty-six".