40034431 has 8 divisors (see below), whose sum is σ = 40544784. Its totient is φ = 39527040.

The previous prime is 40034411. The next prime is 40034437. The reversal of 40034431 is 13443004.

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

It is a cyclic number.

It is not a de Polignac number, because 40034431 - 2⁵ = 40034399 is a prime.

It is a super-3 number, since 3×40034431³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40034399 and 40034408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40034437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38701 + ... + 39721.

It is an arithmetic number, because the mean of its divisors is an integer number (5068098).

Almost surely, 2^40034431 is an apocalyptic number.

40034431 is a deficient number, since it is larger than the sum of its proper divisors (510353).

40034431 is a wasteful number, since it uses less digits than its factorization.

40034431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481.

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

The square root of 40034431 is about 6327.2767443822. The cubic root of 40034431 is about 342.0932881634.

Adding to 40034431 its reverse (13443004), we get a palindrome (53477435).

The spelling of 40034431 in words is "forty million, thirty-four thousand, four hundred thirty-one".