74104720 has 20 divisors (see below), whose sum is σ = 172293660. Its totient is φ = 29641856.

The previous prime is 74104711. The next prime is 74104739. The reversal of 74104720 is 2740147.

It can be written as a sum of positive squares in 2 ways, for example, as 27373824 + 46730896 = 5232^2 + 6836^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463075 + ... + 463234.

It is an arithmetic number, because the mean of its divisors is an integer number (8614683).

Almost surely, 2^74104720 is an apocalyptic number.

It is an amenable number.

74104720 is an abundant number, since it is smaller than the sum of its proper divisors (98188940).

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

74104720 is a wasteful number, since it uses less digits than its factorization.

74104720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926322 (or 926316 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 74104720 is about 8608.4098415445. The cubic root of 74104720 is about 420.0315924837.

Adding to 74104720 its reverse (2740147), we get a palindrome (76844867).

The spelling of 74104720 in words is "seventy-four million, one hundred four thousand, seven hundred twenty".