40499537 has 8 divisors (see below), whose sum is σ = 44065896. Its totient is φ = 36997632.

The previous prime is 40499521. The next prime is 40499617. The reversal of 40499537 is 73599404.

It can be written as a sum of positive squares in 4 ways, for example, as 1048576 + 39450961 = 1024^2 + 6281^2 .

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 40499537 - 2⁴ = 40499521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40499494 and 40499503.

It is not an unprimeable number, because it can be changed into a prime (40499737) 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, 14798 + ... + 17319.

It is an arithmetic number, because the mean of its divisors is an integer number (5508237).

Almost surely, 2^40499537 is an apocalyptic number.

It is an amenable number.

40499537 is a deficient number, since it is larger than the sum of its proper divisors (3566359).

40499537 is a wasteful number, since it uses less digits than its factorization.

40499537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32227.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 40499537 is about 6363.9246538594. The cubic root of 40499537 is about 343.4129641124.

The spelling of 40499537 in words is "forty million, four hundred ninety-nine thousand, five hundred thirty-seven".