155443424 has 48 divisors (see below), whose sum is σ = 320495616. Its totient is φ = 74121600.

The previous prime is 155443411. The next prime is 155443447. The reversal of 155443424 is 424344551.

It is a Harshad number since it is a multiple of its sum of digits (32).

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 7 ways as a sum of consecutive naturals, for example, 69329 + ... + 71535.

It is an arithmetic number, because the mean of its divisors is an integer number (6676992).

Almost surely, 2^155443424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155443424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160247808).

155443424 is an abundant number, since it is smaller than the sum of its proper divisors (165052192).

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

155443424 is a wasteful number, since it uses less digits than its factorization.

155443424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319 (or 2311 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 155443424 is about 12467.6952160373. The cubic root of 155443424 is about 537.6802917090.

Adding to 155443424 its reverse (424344551), we get a palindrome (579787975).

The spelling of 155443424 in words is "one hundred fifty-five million, four hundred forty-three thousand, four hundred twenty-four".