40643034 has 16 divisors (see below), whose sum is σ = 81430272. Its totient is φ = 13523648.

The previous prime is 40643017. The next prime is 40643087. The reversal of 40643034 is 43034604.

40643034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40642995 and 40643013.

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 in 7 ways as a sum of consecutive naturals, for example, 2154 + ... + 9269.

It is an arithmetic number, because the mean of its divisors is an integer number (5089392).

Almost surely, 2^40643034 is an apocalyptic number.

40643034 is an abundant number, since it is smaller than the sum of its proper divisors (40787238).

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

40643034 is a wasteful number, since it uses less digits than its factorization.

40643034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12021.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 40643034 is about 6375.1889383767. The cubic root of 40643034 is about 343.8180769192.

Adding to 40643034 its reverse (43034604), we get a palindrome (83677638).

The spelling of 40643034 in words is "forty million, six hundred forty-three thousand, thirty-four".