74706228 has 36 divisors (see below), whose sum is σ = 199950660. Its totient is φ = 23437056.

The previous prime is 74706197. The next prime is 74706239. The reversal of 74706228 is 82260747.

It can be written as a sum of positive squares in 2 ways, for example, as 24324624 + 50381604 = 4932^2 + 7098^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 74706192 and 74706201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60423 + ... + 61646.

It is an arithmetic number, because the mean of its divisors is an integer number (5554185).

Almost surely, 2^74706228 is an apocalyptic number.

It is an amenable number.

74706228 is an abundant number, since it is smaller than the sum of its proper divisors (125244432).

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

74706228 is a wasteful number, since it uses less digits than its factorization.

74706228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122096 (or 122091 counting only the distinct ones).

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

The square root of 74706228 is about 8643.2764620831. The cubic root of 74706228 is about 421.1649968342.

The spelling of 74706228 in words is "seventy-four million, seven hundred six thousand, two hundred twenty-eight".