40234434 has 16 divisors (see below), whose sum is σ = 81057888. Its totient is φ = 13313312.

The previous prime is 40234433. The next prime is 40234471. The reversal of 40234434 is 43443204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40234433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23652 + ... + 25295.

It is an arithmetic number, because the mean of its divisors is an integer number (5066118).

Almost surely, 2^40234434 is an apocalyptic number.

40234434 is an abundant number, since it is smaller than the sum of its proper divisors (40823454).

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

40234434 is a wasteful number, since it uses less digits than its factorization.

40234434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49089.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 40234434 is about 6343.0618789351. The cubic root of 40234434 is about 342.6620158056.

Adding to 40234434 its reverse (43443204), we get a palindrome (83677638).

The spelling of 40234434 in words is "forty million, two hundred thirty-four thousand, four hundred thirty-four".