40773213 has 24 divisors (see below), whose sum is σ = 65779168. Its totient is φ = 25089264.

The previous prime is 40773209. The next prime is 40773251. The reversal of 40773213 is 31237704.

It is not a de Polignac number, because 40773213 - 2² = 40773209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40773203) 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, 3295 + ... + 9612.

Almost surely, 2^40773213 is an apocalyptic number.

It is an amenable number.

40773213 is a deficient number, since it is larger than the sum of its proper divisors (25005955).

40773213 is a wasteful number, since it uses less digits than its factorization.

40773213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12935 (or 12923 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 40773213 is about 6385.3905910289. The cubic root of 40773213 is about 344.1847669979.

The spelling of 40773213 in words is "forty million, seven hundred seventy-three thousand, two hundred thirteen".