20474361 has 12 divisors (see below), whose sum is σ = 29907540. Its totient is φ = 13495680.

The previous prime is 20474359. The next prime is 20474369. The reversal of 20474361 is 16347402.

It can be written as a sum of positive squares in 2 ways, for example, as 10361961 + 10112400 = 3219^2 + 3180^2 .

It is not a de Polignac number, because 20474361 - 2¹ = 20474359 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20474369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11980 + ... + 13581.

It is an arithmetic number, because the mean of its divisors is an integer number (2492295).

Almost surely, 2^20474361 is an apocalyptic number.

It is an amenable number.

20474361 is a deficient number, since it is larger than the sum of its proper divisors (9433179).

20474361 is a wasteful number, since it uses less digits than its factorization.

20474361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25656 (or 25653 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20474361 is about 4524.8603293361. The cubic root of 20474361 is about 273.5710383446.

The spelling of 20474361 in words is "twenty million, four hundred seventy-four thousand, three hundred sixty-one".