73422436 has 6 divisors (see below), whose sum is σ = 128489270. Its totient is φ = 36711216.

The previous prime is 73422421. The next prime is 73422493. The reversal of 73422436 is 63422437.

It can be written as a sum of positive squares in only one way, i.e., 72999936 + 422500 = 8544^2 + 650^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73422398 and 73422407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9177801 + ... + 9177808.

Almost surely, 2^73422436 is an apocalyptic number.

It is an amenable number.

73422436 is a deficient number, since it is larger than the sum of its proper divisors (55066834).

73422436 is a wasteful number, since it uses less digits than its factorization.

73422436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18355613 (or 18355611 counting only the distinct ones).

The product of its digits is 24192, while the sum is 31.

The square root of 73422436 is about 8568.6892813312. The cubic root of 73422436 is about 418.7385354847.

Subtracting from 73422436 its reverse (63422437), we obtain a palindrome (9999999).

The spelling of 73422436 in words is "seventy-three million, four hundred twenty-two thousand, four hundred thirty-six".