73070030 has 16 divisors (see below), whose sum is σ = 143483184. Its totient is φ = 26570880.

The previous prime is 73070021. The next prime is 73070033. The reversal of 73070030 is 3007037.

It is a junction number, because it is equal to n+sod(n) for n = 73069984 and 73070011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73070033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332027 + ... + 332246.

It is an arithmetic number, because the mean of its divisors is an integer number (8967699).

Almost surely, 2^73070030 is an apocalyptic number.

73070030 is a deficient number, since it is larger than the sum of its proper divisors (70413154).

73070030 is a wasteful number, since it uses less digits than its factorization.

73070030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664291.

The product of its (nonzero) digits is 441, while the sum is 20.

The square root of 73070030 is about 8548.1009586925. The cubic root of 73070030 is about 418.0675203611.

Adding to 73070030 its reverse (3007037), we get a palindrome (76077067).

The spelling of 73070030 in words is "seventy-three million, seventy thousand, thirty".