40234242 has 32 divisors (see below), whose sum is σ = 82498752. Its totient is φ = 13077504.

The previous prime is 40234241. The next prime is 40234253. The reversal of 40234242 is 24243204.

It is not an unprimeable number, because it can be changed into a prime (40234241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42013 + ... + 42959.

It is an arithmetic number, because the mean of its divisors is an integer number (2578086).

Almost surely, 2^40234242 is an apocalyptic number.

40234242 is an abundant number, since it is smaller than the sum of its proper divisors (42264510).

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

40234242 is a wasteful number, since it uses less digits than its factorization.

40234242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 40234242 is about 6343.0467442705. The cubic root of 40234242 is about 342.6614707400.

Adding to 40234242 its reverse (24243204), we get a palindrome (64477446).

The spelling of 40234242 in words is "forty million, two hundred thirty-four thousand, two hundred forty-two".