40766445 has 24 divisors (see below), whose sum is σ = 71296056. Its totient is φ = 21547008.

The previous prime is 40766443. The next prime is 40766471. The reversal of 40766445 is 54466704.

40766445 is a `hidden beast` number, since 4 + 0 + 7 + 6 + 644 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 49284 + 40717161 = 222^2 + 6381^2 .

It is not a de Polignac number, because 40766445 - 2¹ = 40766443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40766441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1077 + ... + 9093.

It is an arithmetic number, because the mean of its divisors is an integer number (2970669).

Almost surely, 2^40766445 is an apocalyptic number.

40766445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40766445 is a deficient number, since it is larger than the sum of its proper divisors (30529611).

40766445 is a wasteful number, since it uses less digits than its factorization.

40766445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8141 (or 8138 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 40766445 is about 6384.8606092851. The cubic root of 40766445 is about 344.1657220480.

The spelling of 40766445 in words is "forty million, seven hundred sixty-six thousand, four hundred forty-five".