73785320 has 32 divisors (see below), whose sum is σ = 189734400. Its totient is φ = 25297728.

The previous prime is 73785307. The next prime is 73785331. The reversal of 73785320 is 2358737.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131480 + ... + 132039.

It is an arithmetic number, because the mean of its divisors is an integer number (5929200).

Almost surely, 2^73785320 is an apocalyptic number.

73785320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73785320 is an abundant number, since it is smaller than the sum of its proper divisors (115949080).

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

73785320 is a wasteful number, since it uses less digits than its factorization.

73785320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263537 (or 263533 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 73785320 is about 8589.8381824107. The cubic root of 73785320 is about 419.4272616611.

The spelling of 73785320 in words is "seventy-three million, seven hundred eighty-five thousand, three hundred twenty".