74534980 has 24 divisors (see below), whose sum is σ = 168564312. Its totient is φ = 27520512.

The previous prime is 74534951. The next prime is 74534981. The reversal of 74534980 is 8943547.

It can be written as a sum of positive squares in 4 ways, for example, as 161604 + 74373376 = 402^2 + 8624^2 .

It is not an unprimeable number, because it can be changed into a prime (74534981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143077 + ... + 143596.

It is an arithmetic number, because the mean of its divisors is an integer number (7023513).

Almost surely, 2^74534980 is an apocalyptic number.

It is an amenable number.

74534980 is an abundant number, since it is smaller than the sum of its proper divisors (94029332).

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

74534980 is a wasteful number, since it uses less digits than its factorization.

74534980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286695 (or 286693 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 74534980 is about 8633.3643500086. The cubic root of 74534980 is about 420.8429404946.

The spelling of 74534980 in words is "seventy-four million, five hundred thirty-four thousand, nine hundred eighty".