73498440 has 64 divisors (see below), whose sum is σ = 223315200. Its totient is φ = 19348992.

The previous prime is 73498433. The next prime is 73498487. The reversal of 73498440 is 4489437.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5604 + ... + 13356.

It is an arithmetic number, because the mean of its divisors is an integer number (3489300).

Almost surely, 2^73498440 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 73498440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111657600).

73498440 is an abundant number, since it is smaller than the sum of its proper divisors (149816760).

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

73498440 is a wasteful number, since it uses less digits than its factorization.

73498440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846 (or 7842 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 73498440 is about 8573.1231182108. The cubic root of 73498440 is about 418.8829728443.

The spelling of 73498440 in words is "seventy-three million, four hundred ninety-eight thousand, four hundred forty".