74671630 has 16 divisors (see below), whose sum is σ = 146628144. Its totient is φ = 27153280.

The previous prime is 74671621. The next prime is 74671631. The reversal of 74671630 is 3617647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74671631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339307 + ... + 339526.

It is an arithmetic number, because the mean of its divisors is an integer number (9164259).

Almost surely, 2^74671630 is an apocalyptic number.

74671630 is a deficient number, since it is larger than the sum of its proper divisors (71956514).

74671630 is a wasteful number, since it uses less digits than its factorization.

74671630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678851.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 74671630 is about 8641.2747902147. The cubic root of 74671630 is about 421.0999700531.

The spelling of 74671630 in words is "seventy-four million, six hundred seventy-one thousand, six hundred thirty".