155443200 has 336 divisors, whose sum is σ = 585069696. Its totient is φ = 36044800.

The previous prime is 155443193. The next prime is 155443201. The reversal of 155443200 is 2344551.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155443201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6758389 + ... + 6758411.

Almost surely, 2^155443200 is an apocalyptic number.

155443200 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 155443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292534848).

155443200 is an abundant number, since it is smaller than the sum of its proper divisors (429626496).

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

155443200 is a wasteful number, since it uses less digits than its factorization.

155443200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 155443200 is about 12467.6862328180. The cubic root of 155443200 is about 537.6800334362.

Adding to 155443200 its reverse (2344551), we get a palindrome (157787751).

The spelling of 155443200 in words is "one hundred fifty-five million, four hundred forty-three thousand, two hundred".