240820953 has 16 divisors (see below), whose sum is σ = 338894400. Its totient is φ = 151692480.

The previous prime is 240820933. The next prime is 240820969. The reversal of 240820953 is 359028042.

It is a happy number.

It is not a de Polignac number, because 240820953 - 2⁶ = 240820889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240820933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16743 + ... + 27603.

It is an arithmetic number, because the mean of its divisors is an integer number (21180900).

Almost surely, 2^240820953 is an apocalyptic number.

It is an amenable number.

240820953 is a deficient number, since it is larger than the sum of its proper divisors (98073447).

240820953 is a wasteful number, since it uses less digits than its factorization.

240820953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11272.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 240820953 is about 15518.4069092159. The cubic root of 240820953 is about 622.1542758584.

Adding to 240820953 its reverse (359028042), we get a palindrome (599848995).

The spelling of 240820953 in words is "two hundred forty million, eight hundred twenty thousand, nine hundred fifty-three".