73422438 has 16 divisors (see below), whose sum is σ = 147488880. Its totient is φ = 24366816.

The previous prime is 73422421. The next prime is 73422493. The reversal of 73422438 is 83422437.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 73422399 and 73422408.

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, 25345 + ... + 28092.

It is an arithmetic number, because the mean of its divisors is an integer number (9218055).

Almost surely, 2^73422438 is an apocalyptic number.

73422438 is an abundant number, since it is smaller than the sum of its proper divisors (74066442).

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

73422438 is a wasteful number, since it uses less digits than its factorization.

73422438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53671.

The product of its digits is 32256, while the sum is 33.

The square root of 73422438 is about 8568.6893980352. The cubic root of 73422438 is about 418.7385392868.

Subtracting 73422438 from its reverse (83422437), we obtain a palindrome (9999999).

The spelling of 73422438 in words is "seventy-three million, four hundred twenty-two thousand, four hundred thirty-eight".