40263434 has 4 divisors (see below), whose sum is σ = 60395154. Its totient is φ = 20131716.

The previous prime is 40263407. The next prime is 40263481. The reversal of 40263434 is 43436204.

40263434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34987225 + 5276209 = 5915^2 + 2297^2 .

It is a super-2 number, since 2×40263434² = 3242288234944712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065857 + ... + 10065860.

Almost surely, 2^40263434 is an apocalyptic number.

40263434 is a deficient number, since it is larger than the sum of its proper divisors (20131720).

40263434 is a wasteful number, since it uses less digits than its factorization.

40263434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20131719.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 40263434 is about 6345.3474294163. The cubic root of 40263434 is about 342.7443235118.

Adding to 40263434 its reverse (43436204), we get a palindrome (83699638).

It can be divided in two parts, 402 and 63434, that added together give a palindrome (63836).

The spelling of 40263434 in words is "forty million, two hundred sixty-three thousand, four hundred thirty-four".