20925466 has 8 divisors (see below), whose sum is σ = 31442400. Its totient is φ = 10444668.

The previous prime is 20925439. The next prime is 20925467. The reversal of 20925466 is 66452902.

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 (20925467) 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 3 ways as a sum of consecutive naturals, for example, 7536 + ... + 9931.

It is an arithmetic number, because the mean of its divisors is an integer number (3930300).

Almost surely, 2^20925466 is an apocalyptic number.

20925466 is a deficient number, since it is larger than the sum of its proper divisors (10516934).

20925466 is a wasteful number, since it uses less digits than its factorization.

20925466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18068.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 20925466 is about 4574.4361401161. The cubic root of 20925466 is about 275.5656280884.

The spelling of 20925466 in words is "twenty million, nine hundred twenty-five thousand, four hundred sixty-six".