40434031 has 16 divisors (see below), whose sum is σ = 45376128. Its totient is φ = 35719200.

The previous prime is 40434029. The next prime is 40434047. The reversal of 40434031 is 13043404.

It is not a de Polignac number, because 40434031 - 2¹ = 40434029 is a prime.

It is a super-2 number, since 2×40434031² = 3269821725817922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60841 + ... + 61501.

It is an arithmetic number, because the mean of its divisors is an integer number (2836008).

Almost surely, 2^40434031 is an apocalyptic number.

40434031 is a deficient number, since it is larger than the sum of its proper divisors (4942097).

40434031 is a wasteful number, since it uses less digits than its factorization.

40434031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 40434031 is about 6358.7759042130. The cubic root of 40434031 is about 343.2277130312.

Adding to 40434031 its reverse (13043404), we get a palindrome (53477435).

It can be divided in two parts, 4043403 and 1, that added together give a palindrome (4043404).

The spelling of 40434031 in words is "forty million, four hundred thirty-four thousand, thirty-one".