42040202 has 8 divisors (see below), whose sum is σ = 63126912. Its totient is φ = 20997900.

The previous prime is 42040199. The next prime is 42040249. The reversal of 42040202 is 20204024.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8624 + ... + 12587.

It is an arithmetic number, because the mean of its divisors is an integer number (7890864).

Almost surely, 2^42040202 is an apocalyptic number.

42040202 is a deficient number, since it is larger than the sum of its proper divisors (21086710).

42040202 is a wasteful number, since it uses less digits than its factorization.

42040202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22204.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 42040202 is about 6483.8416081826. The cubic root of 42040202 is about 347.7135364410.

Adding to 42040202 its reverse (20204024), we get a palindrome (62244226).

The spelling of 42040202 in words is "forty-two million, forty thousand, two hundred two".