73013632 has 16 divisors (see below), whose sum is σ = 145457100. Its totient is φ = 36506752.

The previous prime is 73013597. The next prime is 73013639. The reversal of 73013632 is 23631037.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 73013597 and 73013606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73013639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285082 + ... + 285337.

Almost surely, 2^73013632 is an apocalyptic number.

It is an amenable number.

73013632 is a deficient number, since it is larger than the sum of its proper divisors (72443468).

73013632 is an equidigital number, since it uses as much as digits as its factorization.

73013632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570433 (or 570421 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 73013632 is about 8544.8014605373. The cubic root of 73013632 is about 417.9599329742.

Adding to 73013632 its reverse (23631037), we get a palindrome (96644669).

The spelling of 73013632 in words is "seventy-three million, thirteen thousand, six hundred thirty-two".