20767632 has 20 divisors (see below), whose sum is σ = 53649840. Its totient is φ = 6922528.

The previous prime is 20767631. The next prime is 20767651. The reversal of 20767632 is 23676702.

It is a junction number, because it is equal to n+sod(n) for n = 20767593 and 20767602.

It is not an unprimeable number, because it can be changed into a prime (20767631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216282 + ... + 216377.

It is an arithmetic number, because the mean of its divisors is an integer number (2682492).

Almost surely, 2^20767632 is an apocalyptic number.

It is an amenable number.

20767632 is an abundant number, since it is smaller than the sum of its proper divisors (32882208).

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

20767632 is a wasteful number, since it uses less digits than its factorization.

20767632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432670 (or 432664 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 20767632 is about 4557.1517420424. The cubic root of 20767632 is about 274.8710447729.

The spelling of 20767632 in words is "twenty million, seven hundred sixty-seven thousand, six hundred thirty-two".