74561470 has 16 divisors (see below), whose sum is σ = 136050480. Its totient is φ = 29415744.

The previous prime is 74561449. The next prime is 74561477. The reversal of 74561470 is 7416547.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74561477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50340 + ... + 51799.

It is an arithmetic number, because the mean of its divisors is an integer number (8503155).

Almost surely, 2^74561470 is an apocalyptic number.

74561470 is a deficient number, since it is larger than the sum of its proper divisors (61489010).

74561470 is a wasteful number, since it uses less digits than its factorization.

74561470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102219.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 74561470 is about 8634.8983780934. The cubic root of 74561470 is about 420.8927909543.

The spelling of 74561470 in words is "seventy-four million, five hundred sixty-one thousand, four hundred seventy".