72430422 has 8 divisors (see below), whose sum is σ = 144860856. Its totient is φ = 24143472.

The previous prime is 72430411. The next prime is 72430453. The reversal of 72430422 is 22403427.

It is a sphenic number, since it is the product of 3 distinct primes.

72430422 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 72430392 and 72430401.

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, 6035863 + ... + 6035874.

It is an arithmetic number, because the mean of its divisors is an integer number (18107607).

Almost surely, 2^72430422 is an apocalyptic number.

72430422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72430422 is a wasteful number, since it uses less digits than its factorization.

72430422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12071742.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 72430422 is about 8510.6064413765. The cubic root of 72430422 is about 416.8441124382.

Adding to 72430422 its reverse (22403427), we get a palindrome (94833849).

The spelling of 72430422 in words is "seventy-two million, four hundred thirty thousand, four hundred twenty-two".