74381400 has 216 divisors, whose sum is σ = 264118140. Its totient is φ = 18748800.

The previous prime is 74381399. The next prime is 74381429. The reversal of 74381400 is 418347.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1729779 + ... + 1729821.

Almost surely, 2^74381400 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 74381400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132059070).

74381400 is an abundant number, since it is smaller than the sum of its proper divisors (189736740).

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

74381400 is a wasteful number, since it uses less digits than its factorization.

74381400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 74381400 is about 8624.4652008110. The cubic root of 74381400 is about 420.5536915092.

Adding to 74381400 its reverse (418347), we get a palindrome (74799747).

The spelling of 74381400 in words is "seventy-four million, three hundred eighty-one thousand, four hundred".