73213310 has 16 divisors (see below), whose sum is σ = 134588736. Its totient is φ = 28662048.

The previous prime is 73213307. The next prime is 73213319. The reversal of 73213310 is 1331237.

It is a happy number.

It is a super-2 number, since 2×73213310² = 10720377522312200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73213319) 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, 77417 + ... + 78356.

It is an arithmetic number, because the mean of its divisors is an integer number (8411796).

Almost surely, 2^73213310 is an apocalyptic number.

73213310 is a deficient number, since it is larger than the sum of its proper divisors (61375426).

73213310 is a wasteful number, since it uses less digits than its factorization.

73213310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155827.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 73213310 is about 8556.4776631509. The cubic root of 73213310 is about 418.3405990530.

Adding to 73213310 its reverse (1331237), we get a palindrome (74544547).

The spelling of 73213310 in words is "seventy-three million, two hundred thirteen thousand, three hundred ten".