40287503 has 2 divisors, whose sum is σ = 40287504. Its totient is φ = 40287502.

The previous prime is 40287479. The next prime is 40287509. The reversal of 40287503 is 30578204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40287503 - 2²² = 36093199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40287509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20143751 + 20143752.

It is an arithmetic number, because the mean of its divisors is an integer number (20143752).

Almost surely, 2^40287503 is an apocalyptic number.

40287503 is a deficient number, since it is larger than the sum of its proper divisors (1).

40287503 is an equidigital number, since it uses as much as digits as its factorization.

40287503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40287503 is about 6347.2437325189. The cubic root of 40287503 is about 342.8126060619.

The spelling of 40287503 in words is "forty million, two hundred eighty-seven thousand, five hundred three".