73272532 has 12 divisors (see below), whose sum is σ = 129163860. Its totient is φ = 36368576.

The previous prime is 73272527. The next prime is 73272547. The reversal of 73272532 is 23527237.

It can be written as a sum of positive squares in 2 ways, for example, as 61685316 + 11587216 = 7854^2 + 3404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73272494 and 73272503.

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, 66307 + ... + 67402.

It is an arithmetic number, because the mean of its divisors is an integer number (10763655).

Almost surely, 2^73272532 is an apocalyptic number.

It is an amenable number.

73272532 is a deficient number, since it is larger than the sum of its proper divisors (55891328).

73272532 is a wasteful number, since it uses less digits than its factorization.

73272532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133850 (or 133848 counting only the distinct ones).

The product of its digits is 17640, while the sum is 31.

The square root of 73272532 is about 8559.9376165951. The cubic root of 73272532 is about 418.4533667534.

Adding to 73272532 its reverse (23527237), we get a palindrome (96799769).

The spelling of 73272532 in words is "seventy-three million, two hundred seventy-two thousand, five hundred thirty-two".