40042302 has 8 divisors (see below), whose sum is σ = 80084616. Its totient is φ = 13347432.

The previous prime is 40042273. The next prime is 40042307. The reversal of 40042302 is 20324004.

It is a happy number.

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

40042302 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40042307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336853 + ... + 3336864.

It is an arithmetic number, because the mean of its divisors is an integer number (10010577).

Almost surely, 2^40042302 is an apocalyptic number.

40042302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40042302 is a wasteful number, since it uses less digits than its factorization.

40042302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673722.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40042302 is about 6327.8987033612. The cubic root of 40042302 is about 342.1157058654.

Adding to 40042302 its reverse (20324004), we get a palindrome (60366306).

The spelling of 40042302 in words is "forty million, forty-two thousand, three hundred two".