20746332 has 18 divisors (see below), whose sum is σ = 52442208. Its totient is φ = 6915432.

The previous prime is 20746303. The next prime is 20746351. The reversal of 20746332 is 23364702.

20746332 is a `hidden beast` number, since 20 + 7 + 4 + 633 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 20746296 and 20746305.

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 5 ways as a sum of consecutive naturals, for example, 288108 + ... + 288179.

It is an arithmetic number, because the mean of its divisors is an integer number (2913456).

Almost surely, 2^20746332 is an apocalyptic number.

It is an amenable number.

20746332 is an abundant number, since it is smaller than the sum of its proper divisors (31695876).

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

20746332 is a wasteful number, since it uses less digits than its factorization.

20746332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576297 (or 576292 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 20746332 is about 4554.8141564722. The cubic root of 20746332 is about 274.7770402180. Note that the first 3 decimals are identical.

The spelling of 20746332 in words is "twenty million, seven hundred forty-six thousand, three hundred thirty-two".