40003434 has 24 divisors (see below), whose sum is σ = 88097412. Its totient is φ = 13115520.

The previous prime is 40003409. The next prime is 40003451. The reversal of 40003434 is 43430004.

40003434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39727809 + 275625 = 6303^2 + 525^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 17119 + ... + 19314.

Almost surely, 2^40003434 is an apocalyptic number.

40003434 is an abundant number, since it is smaller than the sum of its proper divisors (48093978).

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

40003434 is a wasteful number, since it uses less digits than its factorization.

40003434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36502 (or 36499 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40003434 is about 6324.8267960475. The cubic root of 40003434 is about 342.0049758176.

Adding to 40003434 its reverse (43430004), we get a palindrome (83433438).

The spelling of 40003434 in words is "forty million, three thousand, four hundred thirty-four".