73036340 has 24 divisors (see below), whose sum is σ = 165175080. Its totient is φ = 26967168.

The previous prime is 73036333. The next prime is 73036349. The reversal of 73036340 is 4363037.

It can be written as a sum of positive squares in 4 ways, for example, as 17623204 + 55413136 = 4198^2 + 7444^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73036349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140195 + ... + 140714.

It is an arithmetic number, because the mean of its divisors is an integer number (6882295).

Almost surely, 2^73036340 is an apocalyptic number.

It is an amenable number.

73036340 is an abundant number, since it is smaller than the sum of its proper divisors (92138740).

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

73036340 is a wasteful number, since it uses less digits than its factorization.

73036340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280931 (or 280929 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 26.

The square root of 73036340 is about 8546.1301183635. The cubic root of 73036340 is about 418.0032584470.

Adding to 73036340 its reverse (4363037), we get a palindrome (77399377).

The spelling of 73036340 in words is "seventy-three million, thirty-six thousand, three hundred forty".