730005210 has 80 divisors (see below), whose sum is σ = 2141374752. Its totient is φ = 176968800.

The previous prime is 730005209. The next prime is 730005217. The reversal of 730005210 is 12500037.

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

It is not an unprimeable number, because it can be changed into a prime (730005217) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32056 + ... + 49875.

Almost surely, 2^730005210 is an apocalyptic number.

730005210 is an abundant number, since it is smaller than the sum of its proper divisors (1411369542).

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

730005210 is a wasteful number, since it uses less digits than its factorization.

730005210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81961 (or 81952 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 730005210 is about 27018.6085874162. The cubic root of 730005210 is about 900.4134766787.

Adding to 730005210 its reverse (12500037), we get a palindrome (742505247).

It can be divided in two parts, 73000 and 5210, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 730005210 in words is "seven hundred thirty million, five thousand, two hundred ten".