20770632 has 24 divisors (see below), whose sum is σ = 56253990. Its totient is φ = 6923520.

The previous prime is 20770619. The next prime is 20770637. The reversal of 20770632 is 23607702.

20770632 is a `hidden beast` number, since 20 + 7 + 7 + 0 + 632 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18714276 + 2056356 = 4326^2 + 1434^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 20770596 and 20770605.

It is not an unprimeable number, because it can be changed into a prime (20770637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144169 + ... + 144312.

Almost surely, 2^20770632 is an apocalyptic number.

It is an amenable number.

20770632 is an abundant number, since it is smaller than the sum of its proper divisors (35483358).

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

20770632 is a wasteful number, since it uses less digits than its factorization.

20770632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288493 (or 288486 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 20770632 is about 4557.4808831195. The cubic root of 20770632 is about 274.8842796862.

The spelling of 20770632 in words is "twenty million, seven hundred seventy thousand, six hundred thirty-two".