20274506 has 24 divisors (see below), whose sum is σ = 36928416. Its totient is φ = 8176320.

The previous prime is 20274503. The next prime is 20274511. The reversal of 20274506 is 60547202.

It is a super-2 number, since 2×20274506² = 822111187088072, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20274503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1541 + ... + 6551.

It is an arithmetic number, because the mean of its divisors is an integer number (1538684).

Almost surely, 2^20274506 is an apocalyptic number.

20274506 is a deficient number, since it is larger than the sum of its proper divisors (16653910).

20274506 is a wasteful number, since it uses less digits than its factorization.

20274506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054 (or 5037 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 20274506 is about 4502.7220655954. The cubic root of 20274506 is about 272.6779961006.

The spelling of 20274506 in words is "twenty million, two hundred seventy-four thousand, five hundred six".