40615242 has 16 divisors (see below), whose sum is σ = 81296832. Its totient is φ = 13527360.

The previous prime is 40615241. The next prime is 40615247. The reversal of 40615242 is 24251604.

It is not an unprimeable number, because it can be changed into a prime (40615241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9138 + ... + 12834.

It is an arithmetic number, because the mean of its divisors is an integer number (5081052).

Almost surely, 2^40615242 is an apocalyptic number.

40615242 is an abundant number, since it is smaller than the sum of its proper divisors (40681590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40615242 is a wasteful number, since it uses less digits than its factorization.

40615242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40615242 is about 6373.0088655203. The cubic root of 40615242 is about 343.7396906219.

Adding to 40615242 its reverse (24251604), we get a palindrome (64866846).

The spelling of 40615242 in words is "forty million, six hundred fifteen thousand, two hundred forty-two".