20466654 has 32 divisors (see below), whose sum is σ = 44440704. Its totient is φ = 6246240.

The previous prime is 20466653. The next prime is 20466671. The reversal of 20466654 is 45666402.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9217 + ... + 11219.

It is an arithmetic number, because the mean of its divisors is an integer number (1388772).

Almost surely, 2^20466654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20466654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22220352).

20466654 is an abundant number, since it is smaller than the sum of its proper divisors (23974050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20466654 is a wasteful number, since it uses less digits than its factorization.

20466654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 20466654 is about 4524.0086206814. The cubic root of 20466654 is about 273.5367079838.

The spelling of 20466654 in words is "twenty million, four hundred sixty-six thousand, six hundred fifty-four".