20130670 has 32 divisors (see below), whose sum is σ = 42264000. Its totient is φ = 6900768.

The previous prime is 20130653. The next prime is 20130683. The reversal of 20130670 is 7603102.

It is a congruent number.

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, 496 + ... + 6364.

It is an arithmetic number, because the mean of its divisors is an integer number (1320750).

Almost surely, 2^20130670 is an apocalyptic number.

20130670 is an abundant number, since it is smaller than the sum of its proper divisors (22133330).

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

20130670 is an equidigital number, since it uses as much as digits as its factorization.

20130670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897 (or 5883 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20130670 is about 4486.7215202194. The cubic root of 20130670 is about 272.0316337920.

Adding to 20130670 its reverse (7603102), we get a palindrome (27733772).

The spelling of 20130670 in words is "twenty million, one hundred thirty thousand, six hundred seventy".