74389650 has 24 divisors (see below), whose sum is σ = 184486704. Its totient is φ = 19837200.

The previous prime is 74389643. The next prime is 74389657. The reversal of 74389650 is 5698347.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74389643) and next prime (74389657).

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

It is not an unprimeable number, because it can be changed into a prime (74389657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247816 + ... + 248115.

It is an arithmetic number, because the mean of its divisors is an integer number (7686946).

Almost surely, 2^74389650 is an apocalyptic number.

74389650 is an abundant number, since it is smaller than the sum of its proper divisors (110097054).

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

74389650 is a wasteful number, since it uses less digits than its factorization.

74389650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495946 (or 495941 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 74389650 is about 8624.9434780757. The cubic root of 74389650 is about 420.5692394808.

The spelling of 74389650 in words is "seventy-four million, three hundred eighty-nine thousand, six hundred fifty".