240509494 has 8 divisors (see below), whose sum is σ = 360943848. Its totient is φ = 120194880.

The previous prime is 240509491. The next prime is 240509497. The reversal of 240509494 is 494905042.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (240509491) and next prime (240509497).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240509491) 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, 24732 + ... + 33055.

It is an arithmetic number, because the mean of its divisors is an integer number (45117981).

Almost surely, 2^240509494 is an apocalyptic number.

240509494 is a deficient number, since it is larger than the sum of its proper divisors (120434354).

240509494 is a wasteful number, since it uses less digits than its factorization.

240509494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59870.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 240509494 is about 15508.3685150953. The cubic root of 240509494 is about 621.8859449064.

The spelling of 240509494 in words is "two hundred forty million, five hundred nine thousand, four hundred ninety-four".