74421028 has 12 divisors (see below), whose sum is σ = 142076592. Its totient is φ = 33827720.

The previous prime is 74420981. The next prime is 74421101. The reversal of 74421028 is 82012447.

It is a junction number, because it is equal to n+sod(n) for n = 74420987 and 74421005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845650 + ... + 845737.

It is an arithmetic number, because the mean of its divisors is an integer number (11839716).

Almost surely, 2^74421028 is an apocalyptic number.

It is an amenable number.

74421028 is a deficient number, since it is larger than the sum of its proper divisors (67655564).

74421028 is a wasteful number, since it uses less digits than its factorization.

74421028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691402 (or 1691400 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 74421028 is about 8626.7623127104. The cubic root of 74421028 is about 420.6283640434.

The spelling of 74421028 in words is "seventy-four million, four hundred twenty-one thousand, twenty-eight".