20849074 has 8 divisors (see below), whose sum is σ = 32036508. Its totient is φ = 10170240.

The previous prime is 20849069. The next prime is 20849077. The reversal of 20849074 is 47094802.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17935225 + 2913849 = 4235^2 + 1707^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20849077) 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, 127047 + ... + 127210.

Almost surely, 2^20849074 is an apocalyptic number.

20849074 is a deficient number, since it is larger than the sum of its proper divisors (11187434).

20849074 is a wasteful number, since it uses less digits than its factorization.

20849074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254300.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 20849074 is about 4566.0786239398. The cubic root of 20849074 is about 275.2298860104.

The spelling of 20849074 in words is "twenty million, eight hundred forty-nine thousand, seventy-four".