20474069 has 16 divisors (see below), whose sum is σ = 27029376. Its totient is φ = 15014400.

The previous prime is 20474053. The next prime is 20474119. The reversal of 20474069 is 96047402.

It is not a de Polignac number, because 20474069 - 2⁴ = 20474053 is a prime.

It is a super-2 number, since 2×20474069² = 838375002833522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20474009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6512 + ... + 9129.

It is an arithmetic number, because the mean of its divisors is an integer number (1689336).

Almost surely, 2^20474069 is an apocalyptic number.

It is an amenable number.

20474069 is a deficient number, since it is larger than the sum of its proper divisors (6555307).

20474069 is a wasteful number, since it uses less digits than its factorization.

20474069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15676.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20474069 is about 4524.8280630318. The cubic root of 20474069 is about 273.5697378054.

It can be divided in two parts, 2047 and 4069, that added together give a palindrome (6116).

The spelling of 20474069 in words is "twenty million, four hundred seventy-four thousand, sixty-nine".