40442302 has 4 divisors (see below), whose sum is σ = 60663456. Its totient is φ = 20221150.

The previous prime is 40442273. The next prime is 40442323. The reversal of 40442302 is 20324404.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40442302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110574 + ... + 10110577.

It is an arithmetic number, because the mean of its divisors is an integer number (15165864).

Almost surely, 2^40442302 is an apocalyptic number.

40442302 is a deficient number, since it is larger than the sum of its proper divisors (20221154).

40442302 is a wasteful number, since it uses less digits than its factorization.

40442302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20221153.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40442302 is about 6359.4262319804. The cubic root of 40442302 is about 343.2511144648.

Adding to 40442302 its reverse (20324404), we get a palindrome (60766706).

The spelling of 40442302 in words is "forty million, four hundred forty-two thousand, three hundred two".