40499259 has 4 divisors (see below), whose sum is σ = 53999016. Its totient is φ = 26999504.

The previous prime is 40499233. The next prime is 40499309. The reversal of 40499259 is 95299404.

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 40499259 - 2⁵ = 40499227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40499259.

It is not an unprimeable number, because it can be changed into a prime (40499209) 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, 6749874 + ... + 6749879.

It is an arithmetic number, because the mean of its divisors is an integer number (13499754).

Almost surely, 2^40499259 is an apocalyptic number.

40499259 is a deficient number, since it is larger than the sum of its proper divisors (13499757).

40499259 is a wasteful number, since it uses less digits than its factorization.

40499259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13499756.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 40499259 is about 6363.9028119543. The cubic root of 40499259 is about 343.4121783501.

The spelling of 40499259 in words is "forty million, four hundred ninety-nine thousand, two hundred fifty-nine".