73261040 has 20 divisors (see below), whose sum is σ = 170332104. Its totient is φ = 29304384.

The previous prime is 73261039. The next prime is 73261117. The reversal of 73261040 is 4016237.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 73260997 and 73261015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457802 + ... + 457961.

Almost surely, 2^73261040 is an apocalyptic number.

It is an amenable number.

73261040 is an abundant number, since it is smaller than the sum of its proper divisors (97071064).

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

73261040 is a wasteful number, since it uses less digits than its factorization.

73261040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915776 (or 915770 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 73261040 is about 8559.2663236985. The cubic root of 73261040 is about 418.4314889893.

Adding to 73261040 its reverse (4016237), we get a palindrome (77277277).

The spelling of 73261040 in words is "seventy-three million, two hundred sixty-one thousand, forty".