40531473 has 24 divisors (see below), whose sum is σ = 61326720. Its totient is φ = 25761120.

The previous prime is 40531457. The next prime is 40531481. The reversal of 40531473 is 37413504.

It is not a de Polignac number, because 40531473 - 2⁴ = 40531457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40531423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20728 + ... + 22598.

It is an arithmetic number, because the mean of its divisors is an integer number (2555280).

Almost surely, 2^40531473 is an apocalyptic number.

It is an amenable number.

40531473 is a deficient number, since it is larger than the sum of its proper divisors (20795247).

40531473 is a wasteful number, since it uses less digits than its factorization.

40531473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1986 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 40531473 is about 6366.4333028785. The cubic root of 40531473 is about 343.5032067485.

Adding to 40531473 its reverse (37413504), we get a palindrome (77944977).

It can be divided in two parts, 405 and 31473, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 40531473 in words is "forty million, five hundred thirty-one thousand, four hundred seventy-three".