1550930328 has 160 divisors (see below), whose sum is σ = 4620844800. Its totient is φ = 484615872.

The previous prime is 1550930327. The next prime is 1550930357. The reversal of 1550930328 is 8230390551.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1550930292 and 1550930301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550930323) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1267525 + ... + 1268747.

It is an arithmetic number, because the mean of its divisors is an integer number (28880280).

Almost surely, 2^1550930328 is an apocalyptic number.

1550930328 is a gapful number since it is divisible by the number (18) 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 1550930328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2310422400).

1550930328 is an abundant number, since it is smaller than the sum of its proper divisors (3069914472).

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

1550930328 is a wasteful number, since it uses less digits than its factorization.

1550930328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1550930328 is about 39381.8527751044. The cubic root of 1550930328 is about 1157.5260214922.

The spelling of 1550930328 in words is "one billion, five hundred fifty million, nine hundred thirty thousand, three hundred twenty-eight".