73689240 has 64 divisors (see below), whose sum is σ = 230688000. Its totient is φ = 18795392.

The previous prime is 73689233. The next prime is 73689269. The reversal of 73689240 is 4298637.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10590 + ... + 16109.

It is an arithmetic number, because the mean of its divisors is an integer number (3604500).

Almost surely, 2^73689240 is an apocalyptic number.

It is an amenable number.

73689240 is an abundant number, since it is smaller than the sum of its proper divisors (156998760).

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

73689240 is a wasteful number, since it uses less digits than its factorization.

73689240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26736 (or 26732 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 73689240 is about 8584.2437057670. The cubic root of 73689240 is about 419.2451293362.

The spelling of 73689240 in words is "seventy-three million, six hundred eighty-nine thousand, two hundred forty".