40244531 has 8 divisors (see below), whose sum is σ = 40689600. Its totient is φ = 39801960.

The previous prime is 40244521. The next prime is 40244551. The reversal of 40244531 is 13544204.

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 40244531 - 2¹⁰ = 40243507 is a prime.

It is a super-2 number, since 2×40244531² = 3239244550819922, 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 = 40244497 and 40244506.

It is not an unprimeable number, because it can be changed into a prime (40244521) 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, 57896 + ... + 58586.

It is an arithmetic number, because the mean of its divisors is an integer number (5086200).

Almost surely, 2^40244531 is an apocalyptic number.

40244531 is a deficient number, since it is larger than the sum of its proper divisors (445069).

40244531 is a wasteful number, since it uses less digits than its factorization.

40244531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40244531 is about 6343.8577380014. The cubic root of 40244531 is about 342.6906775649.

Adding to 40244531 its reverse (13544204), we get a palindrome (53788735).

The spelling of 40244531 in words is "forty million, two hundred forty-four thousand, five hundred thirty-one".