153252440 has 64 divisors (see below), whose sum is σ = 377568000. Its totient is φ = 55520640.

The previous prime is 153252419. The next prime is 153252469. The reversal of 153252440 is 44252351.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166301 + ... + 167219.

It is an arithmetic number, because the mean of its divisors is an integer number (5899500).

Almost surely, 2^153252440 is an apocalyptic number.

153252440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153252440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188784000).

153252440 is an abundant number, since it is smaller than the sum of its proper divisors (224315560).

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

153252440 is a wasteful number, since it uses less digits than its factorization.

153252440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 153252440 is about 12379.5169534195. The cubic root of 153252440 is about 535.1421173091.

The spelling of 153252440 in words is "one hundred fifty-three million, two hundred fifty-two thousand, four hundred forty".