20770748 has 12 divisors (see below), whose sum is σ = 37929360. Its totient is φ = 9933792.

The previous prime is 20770747. The next prime is 20770777. The reversal of 20770748 is 84707702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20770741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112793 + ... + 112976.

It is an arithmetic number, because the mean of its divisors is an integer number (3160780).

Almost surely, 2^20770748 is an apocalyptic number.

It is an amenable number.

20770748 is a deficient number, since it is larger than the sum of its proper divisors (17158612).

20770748 is a wasteful number, since it uses less digits than its factorization.

20770748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225796 (or 225794 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 20770748 is about 4557.4936094305. The cubic root of 20770748 is about 274.8847914106.

The spelling of 20770748 in words is "twenty million, seven hundred seventy thousand, seven hundred forty-eight".