153244240 has 40 divisors (see below), whose sum is σ = 362342880. Its totient is φ = 60256896.

The previous prime is 153244229. The next prime is 153244241. The reversal of 153244240 is 42442351.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153244241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11514 + ... + 20953.

It is an arithmetic number, because the mean of its divisors is an integer number (9058572).

Almost surely, 2^153244240 is an apocalyptic number.

153244240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153244240 is an abundant number, since it is smaller than the sum of its proper divisors (209098640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153244240 is a wasteful number, since it uses less digits than its factorization.

153244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32539 (or 32533 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 153244240 is about 12379.1857567451. The cubic root of 153244240 is about 535.1325726136.

Adding to 153244240 its reverse (42442351), we get a palindrome (195686591).

The spelling of 153244240 in words is "one hundred fifty-three million, two hundred forty-four thousand, two hundred forty".