240148489 has 4 divisors (see below), whose sum is σ = 274455424. Its totient is φ = 205841556.

The previous prime is 240148481. The next prime is 240148499. The reversal of 240148489 is 984841042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240148489 - 2³ = 240148481 is a prime.

It is a super-3 number, since 3×240148489³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240148481) 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, 17153457 + ... + 17153470.

It is an arithmetic number, because the mean of its divisors is an integer number (68613856).

Almost surely, 2^240148489 is an apocalyptic number.

It is an amenable number.

240148489 is a deficient number, since it is larger than the sum of its proper divisors (34306935).

240148489 is an equidigital number, since it uses as much as digits as its factorization.

240148489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34306934.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 240148489 is about 15496.7251056473. The cubic root of 240148489 is about 621.5746386146.

The spelling of 240148489 in words is "two hundred forty million, one hundred forty-eight thousand, four hundred eighty-nine".