73415240 has 64 divisors (see below), whose sum is σ = 179928000. Its totient is φ = 26853120.

The previous prime is 73415219. The next prime is 73415261. The reversal of 73415240 is 4251437.

It is an interprime number because it is at equal distance from previous prime (73415219) and next prime (73415261).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20375 + ... + 23705.

It is an arithmetic number, because the mean of its divisors is an integer number (2811375).

Almost surely, 2^73415240 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 73415240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89964000).

73415240 is an abundant number, since it is smaller than the sum of its proper divisors (106512760).

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

73415240 is a wasteful number, since it uses less digits than its factorization.

73415240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390 (or 3386 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 73415240 is about 8568.2693701821. The cubic root of 73415240 is about 418.7248551026.

Adding to 73415240 its reverse (4251437), we get a palindrome (77666677).

The spelling of 73415240 in words is "seventy-three million, four hundred fifteen thousand, two hundred forty".