155328030 has 224 divisors, whose sum is σ = 495784800. Its totient is φ = 34525440.

The previous prime is 155328029. The next prime is 155328067. The reversal of 155328030 is 30823551.

155328030 is a `hidden beast` number, since 1 + 553 + 2 + 80 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 155327985 and 155328003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1042396 + ... + 1042544.

It is an arithmetic number, because the mean of its divisors is an integer number (2213325).

Almost surely, 2^155328030 is an apocalyptic number.

155328030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155328030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247892400).

155328030 is an abundant number, since it is smaller than the sum of its proper divisors (340456770).

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

155328030 is a wasteful number, since it uses less digits than its factorization.

155328030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 155328030 is about 12463.0666370681. The cubic root of 155328030 is about 537.5472091219.

The spelling of 155328030 in words is "one hundred fifty-five million, three hundred twenty-eight thousand, thirty".