73325040 has 40 divisors (see below), whose sum is σ = 227308368. Its totient is φ = 19553280.

The previous prime is 73325033. The next prime is 73325051. The reversal of 73325040 is 4052337.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×73325040² = 10753122982003200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 73325040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152521 + ... + 153000.

Almost surely, 2^73325040 is an apocalyptic number.

It is an amenable number.

73325040 is an abundant number, since it is smaller than the sum of its proper divisors (153983328).

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

73325040 is a wasteful number, since it uses less digits than its factorization.

73325040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305537 (or 305531 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 73325040 is about 8563.0041457423. The cubic root of 73325040 is about 418.5532991672.

Adding to 73325040 its reverse (4052337), we get a palindrome (77377377).

The spelling of 73325040 in words is "seventy-three million, three hundred twenty-five thousand, forty".