73011040 has 48 divisors (see below), whose sum is σ = 173027232. Its totient is φ = 29113344.

The previous prime is 73011019. The next prime is 73011041. The reversal of 73011040 is 4011037.

It is a super-2 number, since 2×73011040² = 10661223923763200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73011041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77452 + ... + 78388.

It is an arithmetic number, because the mean of its divisors is an integer number (3604734).

Almost surely, 2^73011040 is an apocalyptic number.

It is an amenable number.

73011040 is an abundant number, since it is smaller than the sum of its proper divisors (100016192).

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

73011040 is a wasteful number, since it uses less digits than its factorization.

73011040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 73011040 is about 8544.6497880253. The cubic root of 73011040 is about 417.9549870258.

Adding to 73011040 its reverse (4011037), we get a palindrome (77022077).

The spelling of 73011040 in words is "seventy-three million, eleven thousand, forty".