40231413 has 12 divisors (see below), whose sum is σ = 58435468. Its totient is φ = 26671680.

The previous prime is 40231409. The next prime is 40231427. The reversal of 40231413 is 31413204.

It can be written as a sum of positive squares in 2 ways, for example, as 17363889 + 22867524 = 4167^2 + 4782^2 .

It is not a de Polignac number, because 40231413 - 2² = 40231409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10720 + ... + 13977.

Almost surely, 2^40231413 is an apocalyptic number.

It is an amenable number.

40231413 is a deficient number, since it is larger than the sum of its proper divisors (18204055).

40231413 is a wasteful number, since it uses less digits than its factorization.

40231413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24884 (or 24881 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40231413 is about 6342.8237402595. The cubic root of 40231413 is about 342.6534393388.

Adding to 40231413 its reverse (31413204), we get a palindrome (71644617).

The spelling of 40231413 in words is "forty million, two hundred thirty-one thousand, four hundred thirteen".