40013246 has 32 divisors (see below), whose sum is σ = 74585280. Its totient is φ = 15676416.

The previous prime is 40013227. The next prime is 40013249. The reversal of 40013246 is 64231004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18830 + ... + 20846.

It is an arithmetic number, because the mean of its divisors is an integer number (2330790).

Almost surely, 2^40013246 is an apocalyptic number.

40013246 is a deficient number, since it is larger than the sum of its proper divisors (34572034).

40013246 is a wasteful number, since it uses less digits than its factorization.

40013246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40013246 is about 6325.6024219042. The cubic root of 40013246 is about 342.0329357381.

The spelling of 40013246 in words is "forty million, thirteen thousand, two hundred forty-six".