73070010 has 144 divisors (see below), whose sum is σ = 217179144. Its totient is φ = 16941312.

The previous prime is 73069973. The next prime is 73070017. The reversal of 73070010 is 1007037.

It can be written as a sum of positive squares in 4 ways, for example, as 60980481 + 12089529 = 7809^2 + 3477^2 .

It is a super-2 number, since 2×73070010² = 10678452722800200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73070017) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 422284 + ... + 422456.

Almost surely, 2^73070010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73070010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108589572).

73070010 is an abundant number, since it is smaller than the sum of its proper divisors (144109134).

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

73070010 is a wasteful number, since it uses less digits than its factorization.

73070010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 147, while the sum is 18.

The square root of 73070010 is about 8548.0997888420. The cubic root of 73070010 is about 418.0674822180.

Adding to 73070010 its reverse (1007037), we get a palindrome (74077047).

The spelling of 73070010 in words is "seventy-three million, seventy thousand, ten".