20227297932 has 36 divisors (see below), whose sum is σ = 53821174680. Its totient is φ = 6387567552.

The previous prime is 20227297921. The next prime is 20227297939. The reversal of 20227297932 is 23979272202.

20227297932 is a `hidden beast` number, since 202 + 272 + 97 + 93 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (20227297939) 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, 14785353 + ... + 14786720.

It is an arithmetic number, because the mean of its divisors is an integer number (1495032630).

Almost surely, 2^20227297932 is an apocalyptic number.

It is an amenable number.

20227297932 is an abundant number, since it is smaller than the sum of its proper divisors (33593876748).

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

20227297932 is a wasteful number, since it uses less digits than its factorization.

20227297932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29572102 (or 29572097 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 20227297932 in words is "twenty billion, two hundred twenty-seven million, two hundred ninety-seven thousand, nine hundred thirty-two".