42202040 has 32 divisors (see below), whose sum is σ = 99954000. Its totient is φ = 15992064.

The previous prime is 42202001. The next prime is 42202123. The reversal of 42202040 is 4020224.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27005 + ... + 28524.

Almost surely, 2^42202040 is an apocalyptic number.

42202040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42202040 is an abundant number, since it is smaller than the sum of its proper divisors (57751960).

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

42202040 is a wasteful number, since it uses less digits than its factorization.

42202040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55559 (or 55555 counting only the distinct ones).

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

The square root of 42202040 is about 6496.3097216805. The cubic root of 42202040 is about 348.1591512319.

Adding to 42202040 its reverse (4020224), we get a palindrome (46222264).

The spelling of 42202040 in words is "forty-two million, two hundred two thousand, forty".