40534531 has 8 divisors (see below), whose sum is σ = 41305104. Its totient is φ = 39768960.

The previous prime is 40534519. The next prime is 40534537. The reversal of 40534531 is 13543504.

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 40534531 - 2¹¹ = 40532483 is a prime.

It is a super-2 number, since 2×40534531² = 3286096406779922, 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 = 40534496 and 40534505.

It is not an unprimeable number, because it can be changed into a prime (40534537) 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, 17751 + ... + 19903.

It is an arithmetic number, because the mean of its divisors is an integer number (5163138).

Almost surely, 2^40534531 is an apocalyptic number.

40534531 is a deficient number, since it is larger than the sum of its proper divisors (770573).

40534531 is a wasteful number, since it uses less digits than its factorization.

40534531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 40534531 is about 6366.6734642198. The cubic root of 40534531 is about 343.5118453554.

The spelling of 40534531 in words is "forty million, five hundred thirty-four thousand, five hundred thirty-one".