20130270 has 32 divisors (see below), whose sum is σ = 48442752. Its totient is φ = 5353632.

The previous prime is 20130251. The next prime is 20130281. The reversal of 20130270 is 7203102.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 15049 + ... + 16331.

It is an arithmetic number, because the mean of its divisors is an integer number (1513836).

Almost surely, 2^20130270 is an apocalyptic number.

20130270 is an abundant number, since it is smaller than the sum of its proper divisors (28312482).

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

20130270 is a wasteful number, since it uses less digits than its factorization.

20130270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 20130270 is about 4486.6769440199. The cubic root of 20130270 is about 272.0298320077.

Adding to 20130270 its reverse (7203102), we get a palindrome (27333372).

The spelling of 20130270 in words is "twenty million, one hundred thirty thousand, two hundred seventy".