315528220 has 24 divisors (see below), whose sum is σ = 757268064. Its totient is φ = 108181056.

The previous prime is 315528217. The next prime is 315528233. The reversal of 315528220 is 22825513.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 7 ways as a sum of consecutive naturals, for example, 1126747 + ... + 1127026.

It is an arithmetic number, because the mean of its divisors is an integer number (31552836).

Almost surely, 2^315528220 is an apocalyptic number.

It is an amenable number.

315528220 is an abundant number, since it is smaller than the sum of its proper divisors (441739844).

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

315528220 is a wasteful number, since it uses less digits than its factorization.

315528220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253789 (or 2253787 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 315528220 is about 17763.1140287957. The cubic root of 315528220 is about 680.7893227553.

It can be divided in two parts, 3155 and 28220, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 315528220 in words is "three hundred fifteen million, five hundred twenty-eight thousand, two hundred twenty".