153840840 has 32 divisors (see below), whose sum is σ = 461522880. Its totient is φ = 41024192.

The previous prime is 153840829. The next prime is 153840847. The reversal of 153840840 is 48048351.

It is not an unprimeable number, because it can be changed into a prime (153840847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640884 + ... + 641123.

It is an arithmetic number, because the mean of its divisors is an integer number (14422590).

Almost surely, 2^153840840 is an apocalyptic number.

153840840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153840840 is an abundant number, since it is smaller than the sum of its proper divisors (307682040).

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

153840840 is a wasteful number, since it uses less digits than its factorization.

153840840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282021 (or 1282017 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 153840840 is about 12403.2592490845. The cubic root of 153840840 is about 535.8261205503.

The spelling of 153840840 in words is "one hundred fifty-three million, eight hundred forty thousand, eight hundred forty".