70305102 has 72 divisors (see below), whose sum is σ = 179618400. Its totient is φ = 19813248.

The previous prime is 70305101. The next prime is 70305107. The reversal of 70305102 is 20150307.

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 (70305101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 69174 + ... + 70182.

It is an arithmetic number, because the mean of its divisors is an integer number (2494700).

Almost surely, 2^70305102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70305102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89809200).

70305102 is an abundant number, since it is smaller than the sum of its proper divisors (109313298).

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

70305102 is a wasteful number, since it uses less digits than its factorization.

70305102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1100 counting only the distinct ones).

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

The square root of 70305102 is about 8384.8137725295. The cubic root of 70305102 is about 412.7264299550.

Adding to 70305102 its reverse (20150307), we get a palindrome (90455409).

It can be divided in two parts, 70305 and 102, that added together give a palindrome (70407).

The spelling of 70305102 in words is "seventy million, three hundred five thousand, one hundred two".