40652042 has 4 divisors (see below), whose sum is σ = 60978066. Its totient is φ = 20326020.

The previous prime is 40652041. The next prime is 40652081. The reversal of 40652042 is 24025604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 35772361 + 4879681 = 5981^2 + 2209^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40651999 and 40652017.

It is not an unprimeable number, because it can be changed into a prime (40652041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10163009 + ... + 10163012.

Almost surely, 2^40652042 is an apocalyptic number.

40652042 is a deficient number, since it is larger than the sum of its proper divisors (20326024).

40652042 is a wasteful number, since it uses less digits than its factorization.

40652042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20326023.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40652042 is about 6375.8953881004. The cubic root of 40652042 is about 343.8434759782.

Adding to 40652042 its reverse (24025604), we get a palindrome (64677646).

The spelling of 40652042 in words is "forty million, six hundred fifty-two thousand, forty-two".