40234542 has 32 divisors (see below), whose sum is σ = 84326400. Its totient is φ = 12780768.

The previous prime is 40234511. The next prime is 40234543. The reversal of 40234542 is 24543204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40234543) 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, 12283 + ... + 15209.

It is an arithmetic number, because the mean of its divisors is an integer number (2635200).

Almost surely, 2^40234542 is an apocalyptic number.

40234542 is an abundant number, since it is smaller than the sum of its proper divisors (44091858).

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

40234542 is a wasteful number, since it uses less digits than its factorization.

40234542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 40234542 is about 6343.0703921681. The cubic root of 40234542 is about 342.6623224042.

Adding to 40234542 its reverse (24543204), we get a palindrome (64777746).

The spelling of 40234542 in words is "forty million, two hundred thirty-four thousand, five hundred forty-two".