153843940 has 24 divisors (see below), whose sum is σ = 326407032. Its totient is φ = 60902400.

The previous prime is 153843919. The next prime is 153843947. The reversal of 153843940 is 49348351.

153843940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29833444 + 124010496 = 5462^2 + 11136^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 153843940.

It is not an unprimeable number, because it can be changed into a prime (153843947) 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, 37711 + ... + 41590.

It is an arithmetic number, because the mean of its divisors is an integer number (13600293).

Almost surely, 2^153843940 is an apocalyptic number.

153843940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153843940 is an abundant number, since it is smaller than the sum of its proper divisors (172563092).

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

153843940 is a wasteful number, since it uses less digits than its factorization.

153843940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79407 (or 79405 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 153843940 is about 12403.3842156083. The cubic root of 153843940 is about 535.8297196159.

The spelling of 153843940 in words is "one hundred fifty-three million, eight hundred forty-three thousand, nine hundred forty".