74418500 has 72 divisors (see below), whose sum is σ = 176683416. Its totient is φ = 27220800.

The previous prime is 74418479. The next prime is 74418511. The reversal of 74418500 is 581447.

It can be written as a sum of positive squares in 4 ways, for example, as 11723776 + 62694724 = 3424^2 + 7918^2 .

It is a super-2 number, since 2×74418500² = 11076226284500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 695447 + ... + 695553.

Almost surely, 2^74418500 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 74418500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88341708).

74418500 is an abundant number, since it is smaller than the sum of its proper divisors (102264916).

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

74418500 is a wasteful number, since it uses less digits than its factorization.

74418500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 74418500 is about 8626.6157906794. The cubic root of 74418500 is about 420.6236012294.

Adding to 74418500 its reverse (581447), we get a palindrome (74999947).

The spelling of 74418500 in words is "seventy-four million, four hundred eighteen thousand, five hundred".