73245456 has 90 divisors (see below), whose sum is σ = 216495630. Its totient is φ = 23113728.

The previous prime is 73245439. The next prime is 73245461. The reversal of 73245456 is 65454237.

It can be written as a sum of positive squares in only one way, i.e., 40755456 + 32490000 = 6384^2 + 5700^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 73245456.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 51280 + ... + 52688.

It is an arithmetic number, because the mean of its divisors is an integer number (2405507).

Almost surely, 2^73245456 is an apocalyptic number.

73245456 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73245456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108247815).

73245456 is an abundant number, since it is smaller than the sum of its proper divisors (143250174).

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

73245456 is a wasteful number, since it uses less digits than its factorization.

73245456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1433 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 73245456 is about 8558.3559168803. The cubic root of 73245456 is about 418.4018174715.

The spelling of 73245456 in words is "seventy-three million, two hundred forty-five thousand, four hundred fifty-six".