155480832 has 216 divisors, whose sum is σ = 502210800. Its totient is φ = 45932544.

The previous prime is 155480789. The next prime is 155480833. The reversal of 155480832 is 238084551.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (155480833) 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, 868519 + ... + 868697.

It is an arithmetic number, because the mean of its divisors is an integer number (2325050).

Almost surely, 2^155480832 is an apocalyptic number.

155480832 is a gapful number since it is divisible by the number (12) 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 155480832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251105400).

155480832 is an abundant number, since it is smaller than the sum of its proper divisors (346729968).

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

155480832 is a wasteful number, since it uses less digits than its factorization.

155480832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 155480832 is about 12469.1953228747. The cubic root of 155480832 is about 537.7234197929.

The spelling of 155480832 in words is "one hundred fifty-five million, four hundred eighty thousand, eight hundred thirty-two".