80929444 has 12 divisors (see below), whose sum is σ = 142410268. Its totient is φ = 40240800.

The previous prime is 80929423. The next prime is 80929447. The reversal of 80929444 is 44492908.

It can be written as a sum of positive squares in 2 ways, for example, as 41088100 + 39841344 = 6410^2 + 6312^2 .

It is a super-2 number, since 2×80929444² = 13099149812298272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80929397 and 80929406.

It is not an unprimeable number, because it can be changed into a prime (80929447) 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, 55167 + ... + 56614.

Almost surely, 2^80929444 is an apocalyptic number.

It is an amenable number.

80929444 is a deficient number, since it is larger than the sum of its proper divisors (61480824).

80929444 is a wasteful number, since it uses less digits than its factorization.

80929444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111966 (or 111964 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 80929444 is about 8996.0793682582. The cubic root of 80929444 is about 432.5492057574.

The spelling of 80929444 in words is "eighty million, nine hundred twenty-nine thousand, four hundred forty-four".