155449896 has 64 divisors (see below), whose sum is σ = 451699200. Its totient is φ = 43658688.

The previous prime is 155449891. The next prime is 155449909. The reversal of 155449896 is 698944551.

It is not an unprimeable number, because it can be changed into a prime (155449891) by changing a digit.

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, 2071 + ... + 17753.

It is an arithmetic number, because the mean of its divisors is an integer number (7057800).

Almost surely, 2^155449896 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 155449896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225849600).

155449896 is an abundant number, since it is smaller than the sum of its proper divisors (296249304).

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

155449896 is a wasteful number, since it uses less digits than its factorization.

155449896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15758 (or 15754 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 51.

The square root of 155449896 is about 12467.9547641143. The cubic root of 155449896 is about 537.6877538421.

The spelling of 155449896 in words is "one hundred fifty-five million, four hundred forty-nine thousand, eight hundred ninety-six".