40241431 has 4 divisors (see below), whose sum is σ = 42608592. Its totient is φ = 37874272.

The previous prime is 40241429. The next prime is 40241479. The reversal of 40241431 is 13414204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40241431 - 2¹ = 40241429 is a prime.

It is a super-2 number, since 2×40241431² = 3238745537855522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40241399 and 40241408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40241401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183555 + ... + 1183588.

It is an arithmetic number, because the mean of its divisors is an integer number (10652148).

Almost surely, 2^40241431 is an apocalyptic number.

40241431 is a deficient number, since it is larger than the sum of its proper divisors (2367161).

40241431 is a wasteful number, since it uses less digits than its factorization.

40241431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367160.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 40241431 is about 6343.6134024702. The cubic root of 40241431 is about 342.6818782875.

Adding to 40241431 its reverse (13414204), we get a palindrome (53655635).

The spelling of 40241431 in words is "forty million, two hundred forty-one thousand, four hundred thirty-one".