201670320 has 80 divisors (see below), whose sum is σ = 661966560. Its totient is φ = 50614272.

The previous prime is 201670291. The next prime is 201670361. The reversal of 201670320 is 23076102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20635 + ... + 28794.

It is an arithmetic number, because the mean of its divisors is an integer number (8274582).

Almost surely, 2^201670320 is an apocalyptic number.

201670320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201670320 is an abundant number, since it is smaller than the sum of its proper divisors (460296240).

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

201670320 is a wasteful number, since it uses less digits than its factorization.

201670320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49462 (or 49456 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 201670320 is about 14201.0675655037. The cubic root of 201670320 is about 586.4270514804.

It can be divided in two parts, 201 and 670320, that multiplied together give a triangular number (134734320 = T₁₆₄₁₅).

The spelling of 201670320 in words is "two hundred one million, six hundred seventy thousand, three hundred twenty".