20630492 has 6 divisors (see below), whose sum is σ = 36103368. Its totient is φ = 10315244.

The previous prime is 20630461. The next prime is 20630501. The reversal of 20630492 is 29403602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578808 + ... + 2578815.

It is an arithmetic number, because the mean of its divisors is an integer number (6017228).

Almost surely, 2^20630492 is an apocalyptic number.

It is an amenable number.

20630492 is a deficient number, since it is larger than the sum of its proper divisors (15472876).

20630492 is a wasteful number, since it uses less digits than its factorization.

20630492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157627 (or 5157625 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20630492 is about 4542.0801402001. The cubic root of 20630492 is about 274.2646669221.

The spelling of 20630492 in words is "twenty million, six hundred thirty thousand, four hundred ninety-two".