73200340 has 12 divisors (see below), whose sum is σ = 153720756. Its totient is φ = 29280128.

The previous prime is 73200313. The next prime is 73200353. The reversal of 73200340 is 4300237.

It can be written as a sum of positive squares in 2 ways, for example, as 11168964 + 62031376 = 3342^2 + 7876^2 .

It is a super-2 number, since 2×73200340² = 10716579552231200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1829989 + ... + 1830028.

It is an arithmetic number, because the mean of its divisors is an integer number (12810063).

Almost surely, 2^73200340 is an apocalyptic number.

It is an amenable number.

73200340 is an abundant number, since it is smaller than the sum of its proper divisors (80520416).

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

73200340 is a wasteful number, since it uses less digits than its factorization.

73200340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660026 (or 3660024 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 73200340 is about 8555.7197242546. The cubic root of 73200340 is about 418.3158940824.

Adding to 73200340 its reverse (4300237), we get a palindrome (77500577).

The spelling of 73200340 in words is "seventy-three million, two hundred thousand, three hundred forty".