73690560 has 140 divisors (see below), whose sum is σ = 262222488. Its totient is φ = 19643904.

The previous prime is 73690523. The next prime is 73690583. The reversal of 73690560 is 6509637.

It is a happy number.

73690560 is a `hidden beast` number, since 7 + 3 + 6 + 90 + 560 = 666.

It is a super-2 number, since 2×73690560² = 10860597266227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 24499 + ... + 27341.

Almost surely, 2^73690560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73690560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131111244).

73690560 is an abundant number, since it is smaller than the sum of its proper divisors (188531928).

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

73690560 is a wasteful number, since it uses less digits than its factorization.

73690560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872 (or 2853 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 73690560 is about 8584.3205904719. The cubic root of 73690560 is about 419.2476326427.

The spelling of 73690560 in words is "seventy-three million, six hundred ninety thousand, five hundred sixty".