20380270 has 8 divisors (see below), whose sum is σ = 36684504. Its totient is φ = 8152104.

The previous prime is 20380267. The next prime is 20380271. The reversal of 20380270 is 7208302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20380271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019004 + ... + 1019023.

It is an arithmetic number, because the mean of its divisors is an integer number (4585563).

Almost surely, 2^20380270 is an apocalyptic number.

20380270 is a deficient number, since it is larger than the sum of its proper divisors (16304234).

20380270 is a wasteful number, since it uses less digits than its factorization.

20380270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038034.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20380270 is about 4514.4512401841. The cubic root of 20380270 is about 273.1513247287.

Adding to 20380270 its reverse (7208302), we get a palindrome (27588572).

The spelling of 20380270 in words is "twenty million, three hundred eighty thousand, two hundred seventy".