40102042 has 8 divisors (see below), whose sum is σ = 60182496. Its totient is φ = 20041212.

The previous prime is 40102033. The next prime is 40102109. The reversal of 40102042 is 24020104.

40102042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2353 + ... + 9259.

It is an arithmetic number, because the mean of its divisors is an integer number (7522812).

Almost surely, 2^40102042 is an apocalyptic number.

40102042 is a deficient number, since it is larger than the sum of its proper divisors (20080454).

40102042 is a wasteful number, since it uses less digits than its factorization.

40102042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9812.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 40102042 is about 6332.6173104018. The cubic root of 40102042 is about 342.2857579994.

Adding to 40102042 its reverse (24020104), we get a palindrome (64122146).

The spelling of 40102042 in words is "forty million, one hundred two thousand, forty-two".