73078540 has 48 divisors (see below), whose sum is σ = 156492000. Its totient is φ = 28662272.

The previous prime is 73078517. The next prime is 73078553. The reversal of 73078540 is 4587037.

It is a junction number, because it is equal to n+sod(n) for n = 73078496 and 73078505.

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, 408171 + ... + 408349.

It is an arithmetic number, because the mean of its divisors is an integer number (3260250).

Almost surely, 2^73078540 is an apocalyptic number.

It is an amenable number.

73078540 is an abundant number, since it is smaller than the sum of its proper divisors (83413460).

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

73078540 is a wasteful number, since it uses less digits than its factorization.

73078540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 73078540 is about 8548.5987155791. The cubic root of 73078540 is about 418.0837496163.

The spelling of 73078540 in words is "seventy-three million, seventy-eight thousand, five hundred forty".