74389350 has 144 divisors (see below), whose sum is σ = 222642000. Its totient is φ = 16369920.

The previous prime is 74389349. The next prime is 74389373. The reversal of 74389350 is 5398347.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74389299 and 74389308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 212976 + ... + 213324.

It is an arithmetic number, because the mean of its divisors is an integer number (1546125).

Almost surely, 2^74389350 is an apocalyptic number.

74389350 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 74389350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111321000).

74389350 is an abundant number, since it is smaller than the sum of its proper divisors (148252650).

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

74389350 is a wasteful number, since it uses less digits than its factorization.

74389350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 74389350 is about 8624.9260866398. The cubic root of 74389350 is about 420.5686741201.

The spelling of 74389350 in words is "seventy-four million, three hundred eighty-nine thousand, three hundred fifty".