74228560 has 80 divisors (see below), whose sum is σ = 199737216. Its totient is φ = 25127424.

The previous prime is 74228551. The next prime is 74228587. The reversal of 74228560 is 6582247.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45682 + ... + 47278.

Almost surely, 2^74228560 is an apocalyptic number.

74228560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74228560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99868608).

74228560 is an abundant number, since it is smaller than the sum of its proper divisors (125508656).

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

74228560 is a wasteful number, since it uses less digits than its factorization.

74228560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700 (or 1694 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 74228560 is about 8615.5998050049. The cubic root of 74228560 is about 420.2654406713.

The spelling of 74228560 in words is "seventy-four million, two hundred twenty-eight thousand, five hundred sixty".