40304234 has 16 divisors (see below), whose sum is σ = 63272448. Its totient is φ = 19218672.

The previous prime is 40304233. The next prime is 40304237. The reversal of 40304234 is 43240304.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40304233) 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, 17159 + ... + 19365.

It is an arithmetic number, because the mean of its divisors is an integer number (3954528).

Almost surely, 2^40304234 is an apocalyptic number.

40304234 is a deficient number, since it is larger than the sum of its proper divisors (22968214).

40304234 is a wasteful number, since it uses less digits than its factorization.

40304234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40304234 is about 6348.5615693636. The cubic root of 40304234 is about 342.8600550513.

Adding to 40304234 its reverse (43240304), we get a palindrome (83544538).

The spelling of 40304234 in words is "forty million, three hundred four thousand, two hundred thirty-four".