73503260440 has 16 divisors (see below), whose sum is σ = 165382336080. Its totient is φ = 29401304160.

The previous prime is 73503260431. The next prime is 73503260527. The reversal of 73503260440 is 4406230537.

It is a junction number, because it is equal to n+sod(n) for n = 73503260396 and 73503260405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918790716 + ... + 918790795.

It is an arithmetic number, because the mean of its divisors is an integer number (10336396005).

Almost surely, 2^73503260440 is an apocalyptic number.

It is an amenable number.

73503260440 is an abundant number, since it is smaller than the sum of its proper divisors (91879075640).

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

73503260440 is a wasteful number, since it uses less digits than its factorization.

73503260440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837581522 (or 1837581518 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 34.

Adding to 73503260440 its reverse (4406230537), we get a palindrome (77909490977).

The spelling of 73503260440 in words is "seventy-three billion, five hundred three million, two hundred sixty thousand, four hundred forty".