20229276 has 12 divisors (see below), whose sum is σ = 47201672. Its totient is φ = 6743088.

The previous prime is 20229257. The next prime is 20229289. The reversal of 20229276 is 67292202.

It is a tau number, because it is divible by the number of its divisors (12).

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, 842875 + ... + 842898.

Almost surely, 2^20229276 is an apocalyptic number.

It is an amenable number.

20229276 is an abundant number, since it is smaller than the sum of its proper divisors (26972396).

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

20229276 is a wasteful number, since it uses less digits than its factorization.

20229276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685780 (or 1685778 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20229276 is about 4497.6967438901. The cubic root of 20229276 is about 272.4750744533.

The spelling of 20229276 in words is "twenty million, two hundred twenty-nine thousand, two hundred seventy-six".