74671650 has 144 divisors (see below), whose sum is σ = 218316384. Its totient is φ = 18224640.

The previous prime is 74671631. The next prime is 74671651. The reversal of 74671650 is 5617647.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (74671651) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 328837 + ... + 329063.

It is an arithmetic number, because the mean of its divisors is an integer number (1516086).

Almost surely, 2^74671650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74671650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109158192).

74671650 is an abundant number, since it is smaller than the sum of its proper divisors (143644734).

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

74671650 is a wasteful number, since it uses less digits than its factorization.

74671650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 74671650 is about 8641.2759474513. The cubic root of 74671650 is about 421.1000076488.

The spelling of 74671650 in words is "seventy-four million, six hundred seventy-one thousand, six hundred fifty".