40487259 has 4 divisors (see below), whose sum is σ = 53983016. Its totient is φ = 26991504.

The previous prime is 40487231. The next prime is 40487261. The reversal of 40487259 is 95278404.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40487259 - 2¹³ = 40479067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40487059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6747874 + ... + 6747879.

It is an arithmetic number, because the mean of its divisors is an integer number (13495754).

Almost surely, 2^40487259 is an apocalyptic number.

40487259 is a deficient number, since it is larger than the sum of its proper divisors (13495757).

40487259 is a wasteful number, since it uses less digits than its factorization.

40487259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13495756.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 40487259 is about 6362.9599244377. The cubic root of 40487259 is about 343.3782571269.

The spelling of 40487259 in words is "forty million, four hundred eighty-seven thousand, two hundred fifty-nine".