20741270 has 32 divisors (see below), whose sum is σ = 41021856. Its totient is φ = 7488000.

The previous prime is 20741269. The next prime is 20741291. The reversal of 20741270 is 7214702.

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, 16670 + ... + 17870.

It is an arithmetic number, because the mean of its divisors is an integer number (1281933).

Almost surely, 2^20741270 is an apocalyptic number.

20741270 is a deficient number, since it is larger than the sum of its proper divisors (20280586).

20741270 is a wasteful number, since it uses less digits than its factorization.

20741270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 20741270 is about 4554.2584467726. The cubic root of 20741270 is about 274.7546903311.

Adding to 20741270 its reverse (7214702), we get a palindrome (27955972).

The spelling of 20741270 in words is "twenty million, seven hundred forty-one thousand, two hundred seventy".