41440031 has 4 divisors (see below), whose sum is σ = 41589912. Its totient is φ = 41290152.

The previous prime is 41440019. The next prime is 41440039. The reversal of 41440031 is 13004414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13004414 = 2 ⋅6502207.

It is a cyclic number.

It is not a de Polignac number, because 41440031 - 2¹⁸ = 41177887 is a prime.

It is a super-2 number, since 2×41440031² = 3434552338561922, 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 = 41439991 and 41440009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41440039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74525 + ... + 75078.

It is an arithmetic number, because the mean of its divisors is an integer number (10397478).

Almost surely, 2^41440031 is an apocalyptic number.

41440031 is a deficient number, since it is larger than the sum of its proper divisors (149881).

41440031 is a wasteful number, since it uses less digits than its factorization.

41440031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149880.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 41440031 is about 6437.3931835798. The cubic root of 41440031 is about 346.0509325046.

Adding to 41440031 its reverse (13004414), we get a palindrome (54444445).

The spelling of 41440031 in words is "forty-one million, four hundred forty thousand, thirty-one".