80404428 has 48 divisors (see below), whose sum is σ = 212683520. Its totient is φ = 23436864.

The previous prime is 80404427. The next prime is 80404459. The reversal of 80404428 is 82440408.

80404428 is a modest number, since divided by 4428 gives 804 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 80404395 and 80404404.

It is not an unprimeable number, because it can be changed into a prime (80404427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10600 + ... + 16527.

Almost surely, 2^80404428 is an apocalyptic number.

It is an amenable number.

80404428 is an abundant number, since it is smaller than the sum of its proper divisors (132279092).

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

80404428 is a wasteful number, since it uses less digits than its factorization.

80404428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27166 (or 27164 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 80404428 is about 8966.8516213886. The cubic root of 80404428 is about 431.6118126375.

The spelling of 80404428 in words is "eighty million, four hundred four thousand, four hundred twenty-eight".