20769132 has 36 divisors (see below), whose sum is σ = 50102808. Its totient is φ = 6696000.

The previous prime is 20769131. The next prime is 20769143. The reversal of 20769132 is 23196702.

It is a self number, because there is not a number n which added to its sum of digits gives 20769132.

It is not an unprimeable number, because it can be changed into a prime (20769131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10632 + ... + 12432.

Almost surely, 2^20769132 is an apocalyptic number.

It is an amenable number.

20769132 is an abundant number, since it is smaller than the sum of its proper divisors (29333676).

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

20769132 is a wasteful number, since it uses less digits than its factorization.

20769132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 20769132 is about 4557.3163155524. The cubic root of 20769132 is about 274.8776623889.

The spelling of 20769132 in words is "twenty million, seven hundred sixty-nine thousand, one hundred thirty-two".