73422140 has 24 divisors (see below), whose sum is σ = 168203952. Its totient is φ = 26698880.

The previous prime is 73422121. The next prime is 73422161. The reversal of 73422140 is 4122437.

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 7 ways as a sum of consecutive naturals, for example, 166649 + ... + 167088.

It is an arithmetic number, because the mean of its divisors is an integer number (7008498).

Almost surely, 2^73422140 is an apocalyptic number.

It is an amenable number.

73422140 is an abundant number, since it is smaller than the sum of its proper divisors (94781812).

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

73422140 is a wasteful number, since it uses less digits than its factorization.

73422140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333757 (or 333755 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 73422140 is about 8568.6720091272. The cubic root of 73422140 is about 418.7379727740.

Adding to 73422140 its reverse (4122437), we get a palindrome (77544577).

The spelling of 73422140 in words is "seventy-three million, four hundred twenty-two thousand, one hundred forty".