155672328 has 128 divisors (see below), whose sum is σ = 466698240. Its totient is φ = 42336000.

The previous prime is 155672323. The next prime is 155672329. The reversal of 155672328 is 823276551.

It is not an unprimeable number, because it can be changed into a prime (155672323) 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 31 ways as a sum of consecutive naturals, for example, 369558 + ... + 369978.

It is an arithmetic number, because the mean of its divisors is an integer number (3646080).

Almost surely, 2^155672328 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 155672328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233349120).

155672328 is an abundant number, since it is smaller than the sum of its proper divisors (311025912).

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

155672328 is a wasteful number, since it uses less digits than its factorization.

155672328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 535 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 155672328 is about 12476.8717233127. The cubic root of 155672328 is about 537.9440893055.

The spelling of 155672328 in words is "one hundred fifty-five million, six hundred seventy-two thousand, three hundred twenty-eight".