155288672 has 192 divisors, whose sum is σ = 418037760. Its totient is φ = 54950400.

The previous prime is 155288669. The next prime is 155288687. The reversal of 155288672 is 276882551.

It is a super-2 number, since 2×155288672² = 48229143303047168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1451243 + ... + 1451349.

It is an arithmetic number, because the mean of its divisors is an integer number (2177280).

Almost surely, 2^155288672 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 155288672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209018880).

155288672 is an abundant number, since it is smaller than the sum of its proper divisors (262749088).

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

155288672 is a wasteful number, since it uses less digits than its factorization.

155288672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 177 counting only the distinct ones).

The product of its digits is 268800, while the sum is 44.

The square root of 155288672 is about 12461.4875516529. The cubic root of 155288672 is about 537.5018029145.

The spelling of 155288672 in words is "one hundred fifty-five million, two hundred eighty-eight thousand, six hundred seventy-two".