20706488 has 24 divisors (see below), whose sum is σ = 42677040. Its totient is φ = 9411600.

The previous prime is 20706457. The next prime is 20706503. The reversal of 20706488 is 88460702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9728 + ... + 11663.

It is an arithmetic number, because the mean of its divisors is an integer number (1778210).

Almost surely, 2^20706488 is an apocalyptic number.

It is an amenable number.

20706488 is an abundant number, since it is smaller than the sum of its proper divisors (21970552).

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

20706488 is a wasteful number, since it uses less digits than its factorization.

20706488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21419 (or 21404 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 20706488 is about 4550.4382206552. The cubic root of 20706488 is about 274.6010214294.

It can be divided in two parts, 2070 and 6488, that added together give a palindrome (8558).

The spelling of 20706488 in words is "twenty million, seven hundred six thousand, four hundred eighty-eight".