40487427 has 6 divisors (see below), whose sum is σ = 58481852. Its totient is φ = 26991612.

The previous prime is 40487413. The next prime is 40487437. The reversal of 40487427 is 72478404.

It is not a de Polignac number, because 40487427 - 2⁸ = 40487171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40487391 and 40487400.

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 5 ways as a sum of consecutive naturals, for example, 2249293 + ... + 2249310.

Almost surely, 2^40487427 is an apocalyptic number.

40487427 is a deficient number, since it is larger than the sum of its proper divisors (17994425).

40487427 is a wasteful number, since it uses less digits than its factorization.

40487427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498609 (or 4498606 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 40487427 is about 6362.9731258273. The cubic root of 40487427 is about 343.3787320702.

The spelling of 40487427 in words is "forty million, four hundred eighty-seven thousand, four hundred twenty-seven".