155380284 has 36 divisors (see below), whose sum is σ = 393742440. Its totient is φ = 51664800.

The previous prime is 155380243. The next prime is 155380297. The reversal of 155380284 is 482083551.

It is a happy number.

155380284 is a `hidden beast` number, since 1 + 553 + 80 + 28 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

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 11 ways as a sum of consecutive naturals, for example, 9934 + ... + 20234.

It is an arithmetic number, because the mean of its divisors is an integer number (10937290).

Almost surely, 2^155380284 is an apocalyptic number.

It is an amenable number.

155380284 is an abundant number, since it is smaller than the sum of its proper divisors (238362156).

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

155380284 is a wasteful number, since it uses less digits than its factorization.

155380284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10730 (or 10725 counting only the distinct ones).

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

The square root of 155380284 is about 12465.1628148212. The cubic root of 155380284 is about 537.6074812283.

The spelling of 155380284 in words is "one hundred fifty-five million, three hundred eighty thousand, two hundred eighty-four".