40487413 has 2 divisors, whose sum is σ = 40487414. Its totient is φ = 40487412.

The previous prime is 40487401. The next prime is 40487437. The reversal of 40487413 is 31478404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28804689 + 11682724 = 5367^2 + 3418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40487413 is a prime.

It is a super-2 number, since 2×40487413² = 3278461222865138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40487443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20243706 + 20243707.

It is an arithmetic number, because the mean of its divisors is an integer number (20243707).

Almost surely, 2^40487413 is an apocalyptic number.

It is an amenable number.

40487413 is a deficient number, since it is larger than the sum of its proper divisors (1).

40487413 is an equidigital number, since it uses as much as digits as its factorization.

40487413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 40487413 is about 6362.9720257125. The cubic root of 40487413 is about 343.3786924917.

Subtracting from 40487413 its reverse (31478404), we obtain a palindrome (9009009).

The spelling of 40487413 in words is "forty million, four hundred eighty-seven thousand, four hundred thirteen".