40618249 has 16 divisors (see below), whose sum is σ = 47811456. Its totient is φ = 33782400.

The previous prime is 40618243. The next prime is 40618271. The reversal of 40618249 is 94281604.

It is a cyclic number.

It is not a de Polignac number, because 40618249 - 2¹¹ = 40616201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40618243) 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, 87879 + ... + 88339.

It is an arithmetic number, because the mean of its divisors is an integer number (2988216).

Almost surely, 2^40618249 is an apocalyptic number.

It is an amenable number.

40618249 is a deficient number, since it is larger than the sum of its proper divisors (7193207).

40618249 is a wasteful number, since it uses less digits than its factorization.

40618249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 40618249 is about 6373.2447779761. The cubic root of 40618249 is about 343.7481734779.

The spelling of 40618249 in words is "forty million, six hundred eighteen thousand, two hundred forty-nine".