74400000 has 216 divisors, whose sum is σ = 255483648. Its totient is φ = 19200000.

The previous prime is 74399999. The next prime is 74400017. The reversal of 74400000 is 447.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 10.

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, 2399985 + ... + 2400015.

Almost surely, 2^74400000 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 74400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127741824).

74400000 is an abundant number, since it is smaller than the sum of its proper divisors (181083648).

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

74400000 is an frugal number, since it uses more digits than its factorization.

74400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 74400000 is about 8625.5434611391. The cubic root of 74400000 is about 420.5887434923.

Adding to 74400000 its reverse (447), we get a palindrome (74400447).

The spelling of 74400000 in words is "seventy-four million, four hundred thousand".