40605042 has 16 divisors (see below), whose sum is σ = 82354752. Its totient is φ = 13344240.

The previous prime is 40605041. The next prime is 40605043. The reversal of 40605042 is 24050604.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40605041) and next prime (40605043).

It is not an unprimeable number, because it can be changed into a prime (40605041) 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, 47233 + ... + 48084.

It is an arithmetic number, because the mean of its divisors is an integer number (5147172).

Almost surely, 2^40605042 is an apocalyptic number.

40605042 is an abundant number, since it is smaller than the sum of its proper divisors (41749710).

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

40605042 is a wasteful number, since it uses less digits than its factorization.

40605042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95393.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40605042 is about 6372.2085653249. The cubic root of 40605042 is about 343.7109129331.

Adding to 40605042 its reverse (24050604), we get a palindrome (64655646).

The spelling of 40605042 in words is "forty million, six hundred five thousand, forty-two".