73706740 has 12 divisors (see below), whose sum is σ = 154784196. Its totient is φ = 29482688.

The previous prime is 73706723. The next prime is 73706741. The reversal of 73706740 is 4760737.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32695524 + 41011216 = 5718^2 + 6404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73706696 and 73706705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73706741) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1842649 + ... + 1842688.

It is an arithmetic number, because the mean of its divisors is an integer number (12898683).

Almost surely, 2^73706740 is an apocalyptic number.

It is an amenable number.

73706740 is an abundant number, since it is smaller than the sum of its proper divisors (81077456).

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

73706740 is a wasteful number, since it uses less digits than its factorization.

73706740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685346 (or 3685344 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 73706740 is about 8585.2629546217. The cubic root of 73706740 is about 419.2783146834.

The spelling of 73706740 in words is "seventy-three million, seven hundred six thousand, seven hundred forty".