40242270 has 16 divisors (see below), whose sum is σ = 96581520. Its totient is φ = 10731264.

The previous prime is 40242263. The next prime is 40242287. The reversal of 40242270 is 7224204.

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, 670675 + ... + 670734.

It is an arithmetic number, because the mean of its divisors is an integer number (6036345).

Almost surely, 2^40242270 is an apocalyptic number.

40242270 is an abundant number, since it is smaller than the sum of its proper divisors (56339250).

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

40242270 is a wasteful number, since it uses less digits than its factorization.

40242270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341419.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 40242270 is about 6343.6795316283. The cubic root of 40242270 is about 342.6842598139.

Adding to 40242270 its reverse (7224204), we get a palindrome (47466474).

The spelling of 40242270 in words is "forty million, two hundred forty-two thousand, two hundred seventy".