73481340 has 48 divisors (see below), whose sum is σ = 206307360. Its totient is φ = 19541760.

The previous prime is 73481323. The next prime is 73481357. The reversal of 73481340 is 4318437.

It is an interprime number because it is at equal distance from previous prime (73481323) and next prime (73481357).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 73481298 and 73481307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23806 + ... + 26714.

It is an arithmetic number, because the mean of its divisors is an integer number (4298070).

Almost surely, 2^73481340 is an apocalyptic number.

It is an amenable number.

73481340 is an abundant number, since it is smaller than the sum of its proper divisors (132826020).

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

73481340 is a wasteful number, since it uses less digits than its factorization.

73481340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342 (or 3340 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 73481340 is about 8572.1257573603. The cubic root of 73481340 is about 418.8504848331.

Adding to 73481340 its reverse (4318437), we get a palindrome (77799777).

The spelling of 73481340 in words is "seventy-three million, four hundred eighty-one thousand, three hundred forty".