73757140 has 12 divisors (see below), whose sum is σ = 154890036. Its totient is φ = 29502848.

The previous prime is 73757093. The next prime is 73757141. The reversal of 73757140 is 4175737.

It can be written as a sum of positive squares in 2 ways, for example, as 8503056 + 65254084 = 2916^2 + 8078^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73757096 and 73757105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73757141) 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, 1843909 + ... + 1843948.

It is an arithmetic number, because the mean of its divisors is an integer number (12907503).

Almost surely, 2^73757140 is an apocalyptic number.

It is an amenable number.

73757140 is an abundant number, since it is smaller than the sum of its proper divisors (81132896).

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

73757140 is a wasteful number, since it uses less digits than its factorization.

73757140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687866 (or 3687864 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 73757140 is about 8588.1977154698. The cubic root of 73757140 is about 419.3738591449.

The spelling of 73757140 in words is "seventy-three million, seven hundred fifty-seven thousand, one hundred forty".