73140450 has 24 divisors (see below), whose sum is σ = 181388688. Its totient is φ = 19504080.

The previous prime is 73140383. The next prime is 73140469. The reversal of 73140450 is 5404137.

It is a self number, because there is not a number n which added to its sum of digits gives 73140450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243652 + ... + 243951.

It is an arithmetic number, because the mean of its divisors is an integer number (7557862).

Almost surely, 2^73140450 is an apocalyptic number.

73140450 is an abundant number, since it is smaller than the sum of its proper divisors (108248238).

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

73140450 is a wasteful number, since it uses less digits than its factorization.

73140450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487618 (or 487613 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 73140450 is about 8552.2190102920. The cubic root of 73140450 is about 418.2017790638.

Adding to 73140450 its reverse (5404137), we get a palindrome (78544587).

The spelling of 73140450 in words is "seventy-three million, one hundred forty thousand, four hundred fifty".