74430000 has 150 divisors (see below), whose sum is σ = 260607204. Its totient is φ = 19824000.

The previous prime is 74429989. The next prime is 74430019. The reversal of 74430000 is 3447.

It is a tau number, because it is divible by the number of its divisors (150).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 89587 + ... + 90413.

Almost surely, 2^74430000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130303602).

74430000 is an abundant number, since it is smaller than the sum of its proper divisors (186177204).

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

74430000 is a wasteful number, since it uses less digits than its factorization.

74430000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 74430000 is about 8627.2823067290. The cubic root of 74430000 is about 420.6452666409.

Adding to 74430000 its reverse (3447), we get a palindrome (74433447).

The spelling of 74430000 in words is "seventy-four million, four hundred thirty thousand".