74532450 has 48 divisors (see below), whose sum is σ = 186300576. Its totient is φ = 19718400.

The previous prime is 74532449. The next prime is 74532457. The reversal of 74532450 is 5423547.

It is a super-2 number, since 2×74532450² = 11110172206005000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (74532457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17754 + ... + 21546.

It is an arithmetic number, because the mean of its divisors is an integer number (3881262).

Almost surely, 2^74532450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74532450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93150288).

74532450 is an abundant number, since it is smaller than the sum of its proper divisors (111768126).

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

74532450 is a wasteful number, since it uses less digits than its factorization.

74532450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939 (or 3934 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 74532450 is about 8633.2178241951. The cubic root of 74532450 is about 420.8381787720.

Adding to 74532450 its reverse (5423547), we get a palindrome (79955997).

The spelling of 74532450 in words is "seventy-four million, five hundred thirty-two thousand, four hundred fifty".