20071353 has 32 divisors (see below), whose sum is σ = 29962240. Its totient is φ = 11897280.

The previous prime is 20071333. The next prime is 20071361. The reversal of 20071353 is 35317002.

It is a happy number.

It is not a de Polignac number, because 20071353 - 2⁸ = 20071097 is a prime.

It is a super-2 number, since 2×20071353² = 805718422501218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20071333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65226 + ... + 65532.

It is an arithmetic number, because the mean of its divisors is an integer number (936320).

Almost surely, 2^20071353 is an apocalyptic number.

It is an amenable number.

20071353 is a deficient number, since it is larger than the sum of its proper divisors (9890887).

20071353 is a wasteful number, since it uses less digits than its factorization.

20071353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 20071353 is about 4480.1063603446. The cubic root of 20071353 is about 271.7641816028.

Adding to 20071353 its reverse (35317002), we get a palindrome (55388355).

The spelling of 20071353 in words is "twenty million, seventy-one thousand, three hundred fifty-three".