73898730 has 128 divisors (see below), whose sum is σ = 207820800. Its totient is φ = 18895680.

The previous prime is 73898681. The next prime is 73898743. The reversal of 73898730 is 3789837.

It is a super-2 number, since 2×73898730² = 10922044591225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 677916 + ... + 678024.

It is an arithmetic number, because the mean of its divisors is an integer number (1623600).

Almost surely, 2^73898730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73898730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103910400).

73898730 is an abundant number, since it is smaller than the sum of its proper divisors (133922070).

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

73898730 is a wasteful number, since it uses less digits than its factorization.

73898730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 73898730 is about 8596.4370526399. The cubic root of 73898730 is about 419.6420419446.

The spelling of 73898730 in words is "seventy-three million, eight hundred ninety-eight thousand, seven hundred thirty".