73520490 has 64 divisors (see below), whose sum is σ = 182217600. Its totient is φ = 18975744.

The previous prime is 73520483. The next prime is 73520521. The reversal of 73520490 is 9402537.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128926 + ... + 129494.

It is an arithmetic number, because the mean of its divisors is an integer number (2847150).

Almost surely, 2^73520490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73520490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91108800).

73520490 is an abundant number, since it is smaller than the sum of its proper divisors (108697110).

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

73520490 is a wasteful number, since it uses less digits than its factorization.

73520490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 73520490 is about 8574.4090175358. The cubic root of 73520490 is about 418.9248578423.

The spelling of 73520490 in words is "seventy-three million, five hundred twenty thousand, four hundred ninety".