40090259 has 4 divisors (see below), whose sum is σ = 43734840. Its totient is φ = 36445680.

The previous prime is 40090249. The next prime is 40090261. The reversal of 40090259 is 95209004.

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

It is a cyclic number.

It is not a de Polignac number, because 40090259 - 2²⁰ = 39041683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40090229) 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, 1822274 + ... + 1822295.

It is an arithmetic number, because the mean of its divisors is an integer number (10933710).

Almost surely, 2^40090259 is an apocalyptic number.

40090259 is a deficient number, since it is larger than the sum of its proper divisors (3644581).

40090259 is a wasteful number, since it uses less digits than its factorization.

40090259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644580.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 40090259 is about 6331.6869000291. The cubic root of 40090259 is about 342.2522306280.

The spelling of 40090259 in words is "forty million, ninety thousand, two hundred fifty-nine".