40343434 has 8 divisors (see below), whose sum is σ = 60622848. Its totient is φ = 20135820.

The previous prime is 40343423. The next prime is 40343453. The reversal of 40343434 is 43434304.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40343399 and 40343408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16522 + ... + 18805.

It is an arithmetic number, because the mean of its divisors is an integer number (7577856).

Almost surely, 2^40343434 is an apocalyptic number.

40343434 is a deficient number, since it is larger than the sum of its proper divisors (20279414).

40343434 is a wasteful number, since it uses less digits than its factorization.

40343434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35900.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 40343434 is about 6351.6481325716. The cubic root of 40343434 is about 342.9711745532.

Adding to 40343434 its reverse (43434304), we get a palindrome (83777738).

The spelling of 40343434 in words is "forty million, three hundred forty-three thousand, four hundred thirty-four".