73522040 has 16 divisors (see below), whose sum is σ = 165424680. Its totient is φ = 29408800.

The previous prime is 73522027. The next prime is 73522063. The reversal of 73522040 is 4022537.

It is a junction number, because it is equal to n+sod(n) for n = 73521997 and 73522015.

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, 918986 + ... + 919065.

Almost surely, 2^73522040 is an apocalyptic number.

It is an amenable number.

73522040 is an abundant number, since it is smaller than the sum of its proper divisors (91902640).

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

73522040 is a wasteful number, since it uses less digits than its factorization.

73522040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838062 (or 1838058 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 73522040 is about 8574.4994022975. The cubic root of 73522040 is about 418.9278018242.

Adding to 73522040 its reverse (4022537), we get a palindrome (77544577).

The spelling of 73522040 in words is "seventy-three million, five hundred twenty-two thousand, forty".