73222680 has 128 divisors (see below), whose sum is σ = 232113600. Its totient is φ = 18450432.

The previous prime is 73222673. The next prime is 73222691. The reversal of 73222680 is 8622237.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184242 + ... + 184638.

Almost surely, 2^73222680 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 73222680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116056800).

73222680 is an abundant number, since it is smaller than the sum of its proper divisors (158890920).

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

73222680 is a wasteful number, since it uses less digits than its factorization.

73222680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 73222680 is about 8557.0251840228. The cubic root of 73222680 is about 418.3584450075.

The spelling of 73222680 in words is "seventy-three million, two hundred twenty-two thousand, six hundred eighty".