20768226 has 32 divisors (see below), whose sum is σ = 42977088. Its totient is φ = 6686400.

The previous prime is 20768207. The next prime is 20768249. The reversal of 20768226 is 62286702.

It is a super-2 number, since 2×20768226² = 862638422374152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25660 + ... + 26456.

It is an arithmetic number, because the mean of its divisors is an integer number (1343034).

Almost surely, 2^20768226 is an apocalyptic number.

20768226 is an abundant number, since it is smaller than the sum of its proper divisors (22208862).

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

20768226 is a wasteful number, since it uses less digits than its factorization.

20768226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 20768226 is about 4557.2169138631. The cubic root of 20768226 is about 274.8736653869.

The spelling of 20768226 in words is "twenty million, seven hundred sixty-eight thousand, two hundred twenty-six".