73241040 has 160 divisors (see below), whose sum is σ = 238841856. Its totient is φ = 18547200.

The previous prime is 73241009. The next prime is 73241041. The reversal of 73241040 is 4014237.

It is a super-3 number, since 3×73241040³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73240998 and 73241016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73241041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484965 + ... + 485115.

Almost surely, 2^73241040 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 73241040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119420928).

73241040 is an abundant number, since it is smaller than the sum of its proper divisors (165600816).

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

73241040 is a wasteful number, since it uses less digits than its factorization.

73241040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 73241040 is about 8558.0979195146. The cubic root of 73241040 is about 418.3934087608.

Adding to 73241040 its reverse (4014237), we get a palindrome (77255277).

The spelling of 73241040 in words is "seventy-three million, two hundred forty-one thousand, forty".