73478436 has 12 divisors (see below), whose sum is σ = 171449712. Its totient is φ = 24492808.

The previous prime is 73478417. The next prime is 73478441. The reversal of 73478436 is 63487437.

It is a tau number, because it is divible by the number of its divisors (12).

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, 3061590 + ... + 3061613.

It is an arithmetic number, because the mean of its divisors is an integer number (14287476).

Almost surely, 2^73478436 is an apocalyptic number.

It is an amenable number.

73478436 is an abundant number, since it is smaller than the sum of its proper divisors (97971276).

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

73478436 is a wasteful number, since it uses less digits than its factorization.

73478436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6123210 (or 6123208 counting only the distinct ones).

The product of its digits is 338688, while the sum is 42.

The square root of 73478436 is about 8571.9563694643. The cubic root of 73478436 is about 418.8449670703.

Subtracting from 73478436 its reverse (63487437), we obtain a palindrome (9990999).

The spelling of 73478436 in words is "seventy-three million, four hundred seventy-eight thousand, four hundred thirty-six".