73234040 has 48 divisors (see below), whose sum is σ = 181130040. Its totient is φ = 26628800.

The previous prime is 73234033. The next prime is 73234061. The reversal of 73234040 is 4043237.

73234040 = 917² + 918² + ... + 996².

It is a happy number.

It is a super-2 number, since 2×73234040² = 10726449229443200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73233997 and 73234015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2726 + ... + 12405.

Almost surely, 2^73234040 is an apocalyptic number.

It is an amenable number.

73234040 is an abundant number, since it is smaller than the sum of its proper divisors (107896000).

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

73234040 is a wasteful number, since it uses less digits than its factorization.

73234040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15164 (or 15149 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 73234040 is about 8557.6889403623. The cubic root of 73234040 is about 418.3800790431.

Adding to 73234040 its reverse (4043237), we get a palindrome (77277277).

The spelling of 73234040 in words is "seventy-three million, two hundred thirty-four thousand, forty".