73478544 has 20 divisors (see below), whose sum is σ = 189819696. Its totient is φ = 24492832.

The previous prime is 73478533. The next prime is 73478549. The reversal of 73478544 is 44587437.

It is a junction number, because it is equal to n+sod(n) for n = 73478496 and 73478505.

It is not an unprimeable number, because it can be changed into a prime (73478549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765354 + ... + 765449.

Almost surely, 2^73478544 is an apocalyptic number.

It is an amenable number.

73478544 is an abundant number, since it is smaller than the sum of its proper divisors (116341152).

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

73478544 is a wasteful number, since it uses less digits than its factorization.

73478544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530814 (or 1530808 counting only the distinct ones).

The product of its digits is 376320, while the sum is 42.

The square root of 73478544 is about 8571.9626690741. The cubic root of 73478544 is about 418.8451722789.

The spelling of 73478544 in words is "seventy-three million, four hundred seventy-eight thousand, five hundred forty-four".