74026728 has 24 divisors (see below), whose sum is σ = 200489250. Its totient is φ = 24675552.

The previous prime is 74026723. The next prime is 74026741. The reversal of 74026728 is 82762047.

It can be written as a sum of positive squares in only one way, i.e., 73925604 + 101124 = 8598^2 + 318^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 74026692 and 74026701.

It is not an unprimeable number, because it can be changed into a prime (74026723) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 514003 + ... + 514146.

Almost surely, 2^74026728 is an apocalyptic number.

It is an amenable number.

74026728 is an abundant number, since it is smaller than the sum of its proper divisors (126462522).

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

74026728 is a wasteful number, since it uses less digits than its factorization.

74026728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028161 (or 1028154 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 74026728 is about 8603.8786602323. The cubic root of 74026728 is about 419.8841857544.

The spelling of 74026728 in words is "seventy-four million, twenty-six thousand, seven hundred twenty-eight".