155880408 has 64 divisors (see below), whose sum is σ = 421344000. Its totient is φ = 47889792.

The previous prime is 155880343. The next prime is 155880443. The reversal of 155880408 is 804088551.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12253 + ... + 21491.

It is an arithmetic number, because the mean of its divisors is an integer number (6583500).

Almost surely, 2^155880408 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 155880408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210672000).

155880408 is an abundant number, since it is smaller than the sum of its proper divisors (265463592).

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

155880408 is a wasteful number, since it uses less digits than its factorization.

155880408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9304 (or 9300 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 155880408 is about 12485.2075673575. The cubic root of 155880408 is about 538.1836642545.

The spelling of 155880408 in words is "one hundred fifty-five million, eight hundred eighty thousand, four hundred eight".