40845213 has 12 divisors (see below), whose sum is σ = 59710560. Its totient is φ = 26901576.

The previous prime is 40845199. The next prime is 40845223. The reversal of 40845213 is 31254804.

40845213 is a `hidden beast` number, since 408 + 45 + 213 = 666.

It is not a de Polignac number, because 40845213 - 2⁶ = 40845149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40845223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26593 + ... + 28086.

It is an arithmetic number, because the mean of its divisors is an integer number (4975880).

Almost surely, 2^40845213 is an apocalyptic number.

It is an amenable number.

40845213 is a deficient number, since it is larger than the sum of its proper divisors (18865347).

40845213 is a wasteful number, since it uses less digits than its factorization.

40845213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54768 (or 54765 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40845213 is about 6391.0259739732. The cubic root of 40845213 is about 344.3872425031.

The spelling of 40845213 in words is "forty million, eight hundred forty-five thousand, two hundred thirteen".