73725390 has 40 divisors (see below), whose sum is σ = 198241560. Its totient is φ = 19659888.

The previous prime is 73725383. The next prime is 73725403. The reversal of 73725390 is 9352737.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 44700 + ... + 46319.

It is an arithmetic number, because the mean of its divisors is an integer number (4956039).

Almost surely, 2^73725390 is an apocalyptic number.

73725390 is an abundant number, since it is smaller than the sum of its proper divisors (124516170).

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

73725390 is a wasteful number, since it uses less digits than its factorization.

73725390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91038 (or 91029 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 73725390 is about 8586.3490495088. The cubic root of 73725390 is about 419.3136750007.

The spelling of 73725390 in words is "seventy-three million, seven hundred twenty-five thousand, three hundred ninety".