213472328 has 16 divisors (see below), whose sum is σ = 401689260. Its totient is φ = 106355200.

The previous prime is 213472309. The next prime is 213472331. The reversal of 213472328 is 823274312.

It can be written as a sum of positive squares in 2 ways, for example, as 189833284 + 23639044 = 13778^2 + 4862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213472294 and 213472303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45233 + ... + 49728.

Almost surely, 2^213472328 is an apocalyptic number.

It is an amenable number.

213472328 is a deficient number, since it is larger than the sum of its proper divisors (188216932).

213472328 is a wasteful number, since it uses less digits than its factorization.

213472328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95248 (or 95244 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 213472328 is about 14610.6922491715. The cubic root of 213472328 is about 597.6503737345.

The spelling of 213472328 in words is "two hundred thirteen million, four hundred seventy-two thousand, three hundred twenty-eight".