73026390 has 96 divisors (see below), whose sum is σ = 193039200. Its totient is φ = 17617920.

The previous prime is 73026389. The next prime is 73026461. The reversal of 73026390 is 9362037.

It is a happy number.

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

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 490036 + ... + 490184.

It is an arithmetic number, because the mean of its divisors is an integer number (2010825).

Almost surely, 2^73026390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73026390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96519600).

73026390 is an abundant number, since it is smaller than the sum of its proper divisors (120012810).

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

73026390 is a wasteful number, since it uses less digits than its factorization.

73026390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 73026390 is about 8545.5479637060. The cubic root of 73026390 is about 417.9842755621.

The spelling of 73026390 in words is "seventy-three million, twenty-six thousand, three hundred ninety".