40987519 has 8 divisors (see below), whose sum is σ = 41840928. Its totient is φ = 40141920.

The previous prime is 40987501. The next prime is 40987543. The reversal of 40987519 is 91578904.

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 40987519 - 2¹³ = 40979327 is a prime.

It is a super-2 number, since 2×40987519² = 3359953427550722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40987559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9309 + ... + 12985.

It is an arithmetic number, because the mean of its divisors is an integer number (5230116).

Almost surely, 2^40987519 is an apocalyptic number.

40987519 is a deficient number, since it is larger than the sum of its proper divisors (853409).

40987519 is a wasteful number, since it uses less digits than its factorization.

40987519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 40987519 is about 6402.1495608897. The cubic root of 40987519 is about 344.7867308942.

The spelling of 40987519 in words is "forty million, nine hundred eighty-seven thousand, five hundred nineteen".