73010340 has 144 divisors (see below), whose sum is σ = 244638576. Its totient is φ = 17510400.

The previous prime is 73010339. The next prime is 73010347. The reversal of 73010340 is 4301037.

It can be written as a sum of positive squares in 8 ways, for example, as 45887076 + 27123264 = 6774^2 + 5208^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (73010347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95560 + ... + 96320.

It is an arithmetic number, because the mean of its divisors is an integer number (1698879).

Almost surely, 2^73010340 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 73010340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122319288).

73010340 is an abundant number, since it is smaller than the sum of its proper divisors (171628236).

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

73010340 is a wasteful number, since it uses less digits than its factorization.

73010340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 73010340 is about 8544.6088266228. The cubic root of 73010340 is about 417.9536512943.

Adding to 73010340 its reverse (4301037), we get a palindrome (77311377).

The spelling of 73010340 in words is "seventy-three million, ten thousand, three hundred forty".