20575274 has 8 divisors (see below), whose sum is σ = 30888000. Its totient is φ = 10279276.

The previous prime is 20575259. The next prime is 20575301. The reversal of 20575274 is 47257502.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20575274.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 434 + ... + 6429.

It is an arithmetic number, because the mean of its divisors is an integer number (3861000).

Almost surely, 2^20575274 is an apocalyptic number.

20575274 is a deficient number, since it is larger than the sum of its proper divisors (10312726).

20575274 is a wasteful number, since it uses less digits than its factorization.

20575274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8364.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 20575274 is about 4535.9975749553. The cubic root of 20575274 is about 274.0197563321.

The spelling of 20575274 in words is "twenty million, five hundred seventy-five thousand, two hundred seventy-four".