20773488 has 20 divisors (see below), whose sum is σ = 53664968. Its totient is φ = 6924480.

The previous prime is 20773469. The next prime is 20773549. The reversal of 20773488 is 88437702.

It is a super-2 number, since 2×20773488² = 863075607372288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216343 + ... + 216438.

Almost surely, 2^20773488 is an apocalyptic number.

It is an amenable number.

20773488 is an abundant number, since it is smaller than the sum of its proper divisors (32891480).

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

20773488 is a wasteful number, since it uses less digits than its factorization.

20773488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432792 (or 432786 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 20773488 is about 4557.7942033400. The cubic root of 20773488 is about 274.8968781397.

It can be divided in two parts, 2077 and 3488, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 20773488 in words is "twenty million, seven hundred seventy-three thousand, four hundred eighty-eight".