73999458 has 48 divisors (see below), whose sum is σ = 174894720. Its totient is φ = 22475232.

The previous prime is 73999451. The next prime is 73999459. The reversal of 73999458 is 85499937.

It is not an unprimeable number, because it can be changed into a prime (73999451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16485 + ... + 20487.

It is an arithmetic number, because the mean of its divisors is an integer number (3643640).

Almost surely, 2^73999458 is an apocalyptic number.

73999458 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 73999458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87447360).

73999458 is an abundant number, since it is smaller than the sum of its proper divisors (100895262).

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

73999458 is a wasteful number, since it uses less digits than its factorization.

73999458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103 (or 4100 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 73999458 is about 8602.2937638748. The cubic root of 73999458 is about 419.8326203791.

The spelling of 73999458 in words is "seventy-three million, nine hundred ninety-nine thousand, four hundred fifty-eight".