40304434 has 16 divisors (see below), whose sum is σ = 64720800. Its totient is φ = 18766944.

The previous prime is 40304423. The next prime is 40304443. The reversal of 40304434 is 43440304.

It is a happy 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, 6747 + ... + 11230.

It is an arithmetic number, because the mean of its divisors is an integer number (4045050).

Almost surely, 2^40304434 is an apocalyptic number.

40304434 is a deficient number, since it is larger than the sum of its proper divisors (24416366).

40304434 is a wasteful number, since it uses less digits than its factorization.

40304434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18057.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 40304434 is about 6348.5773209436. The cubic root of 40304434 is about 342.8606221704.

Adding to 40304434 its reverse (43440304), we get a palindrome (83744738).

It can be divided in two parts, 4030 and 4434, that added together give a square (8464 = 92²).

The spelling of 40304434 in words is "forty million, three hundred four thousand, four hundred thirty-four".