73898240 has 72 divisors (see below), whose sum is σ = 190668408. Its totient is φ = 27279360.

The previous prime is 73898221. The next prime is 73898243. The reversal of 73898240 is 4289837.

It can be written as a sum of positive squares in 4 ways, for example, as 350464 + 73547776 = 592^2 + 8576^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73898243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14420 + ... + 18860.

Almost surely, 2^73898240 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 73898240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95334204).

73898240 is an abundant number, since it is smaller than the sum of its proper divisors (116770168).

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

73898240 is a wasteful number, since it uses less digits than its factorization.

73898240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475 (or 4461 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 73898240 is about 8596.4085524130. The cubic root of 73898240 is about 419.6411144363.

The spelling of 73898240 in words is "seventy-three million, eight hundred ninety-eight thousand, two hundred forty".