20746452 has 12 divisors (see below), whose sum is σ = 48408416. Its totient is φ = 6915480.

The previous prime is 20746441. The next prime is 20746487. The reversal of 20746452 is 25464702.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864424 + ... + 864447.

Almost surely, 2^20746452 is an apocalyptic number.

It is an amenable number.

20746452 is an abundant number, since it is smaller than the sum of its proper divisors (27661964).

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

20746452 is a wasteful number, since it uses less digits than its factorization.

20746452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728878 (or 1728876 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 20746452 is about 4554.8273293287. The cubic root of 20746452 is about 274.7775700013. Note that the first 3 decimals are identical.

The spelling of 20746452 in words is "twenty million, seven hundred forty-six thousand, four hundred fifty-two".