40537263 has 16 divisors (see below), whose sum is σ = 58352000. Its totient is φ = 24884064.

The previous prime is 40537249. The next prime is 40537297. The reversal of 40537263 is 36273504.

It is not a de Polignac number, because 40537263 - 2⁶ = 40537199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40537263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40537223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18420 + ... + 20502.

It is an arithmetic number, because the mean of its divisors is an integer number (3647000).

Almost surely, 2^40537263 is an apocalyptic number.

40537263 is a deficient number, since it is larger than the sum of its proper divisors (17814737).

40537263 is a wasteful number, since it uses less digits than its factorization.

40537263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 40537263 is about 6366.8880153494. Note that the first 3 decimals coincide. The cubic root of 40537263 is about 343.5195626708.

The spelling of 40537263 in words is "forty million, five hundred thirty-seven thousand, two hundred sixty-three".