155342928 has 80 divisors (see below), whose sum is σ = 434972160. Its totient is φ = 47488512.

The previous prime is 155342861. The next prime is 155342951. The reversal of 155342928 is 829243551.

155342928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155342928² = 48262850559226368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107233 + ... + 108671.

It is an arithmetic number, because the mean of its divisors is an integer number (5437152).

Almost surely, 2^155342928 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 155342928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217486080).

155342928 is an abundant number, since it is smaller than the sum of its proper divisors (279629232).

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

155342928 is a wasteful number, since it uses less digits than its factorization.

155342928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636 (or 1630 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 155342928 is about 12463.6643087015. The cubic root of 155342928 is about 537.5643945204.

The spelling of 155342928 in words is "one hundred fifty-five million, three hundred forty-two thousand, nine hundred twenty-eight".