40487436 has 36 divisors (see below), whose sum is σ = 111648264. Its totient is φ = 12268800.

The previous prime is 40487413. The next prime is 40487437. The reversal of 40487436 is 63478404.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40487436.

It is not an unprimeable number, because it can be changed into a prime (40487437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50725 + ... + 51516.

Almost surely, 2^40487436 is an apocalyptic number.

It is an amenable number.

40487436 is an abundant number, since it is smaller than the sum of its proper divisors (71160828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40487436 is a wasteful number, since it uses less digits than its factorization.

40487436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102262 (or 102257 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 40487436 is about 6362.9738330438. The cubic root of 40487436 is about 343.3787575136.

The spelling of 40487436 in words is "forty million, four hundred eighty-seven thousand, four hundred thirty-six".