155728360 has 16 divisors (see below), whose sum is σ = 350388900. Its totient is φ = 62291328.

The previous prime is 155728357. The next prime is 155728361. The reversal of 155728360 is 63827551.

It can be written as a sum of positive squares in 2 ways, for example, as 151831684 + 3896676 = 12322^2 + 1974^2 .

It is not an unprimeable number, because it can be changed into a prime (155728361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1946565 + ... + 1946644.

Almost surely, 2^155728360 is an apocalyptic number.

155728360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155728360 is an abundant number, since it is smaller than the sum of its proper divisors (194660540).

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

155728360 is a wasteful number, since it uses less digits than its factorization.

155728360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893220 (or 3893216 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 155728360 is about 12479.1169559388. The cubic root of 155728360 is about 538.0086232915.

It can be divided in two parts, 15572 and 8360, that added together give a palindrome (23932).

The spelling of 155728360 in words is "one hundred fifty-five million, seven hundred twenty-eight thousand, three hundred sixty".