70306000 has 40 divisors (see below), whose sum is σ = 170004744. Its totient is φ = 28121600.

The previous prime is 70305979. The next prime is 70306003. The reversal of 70306000 is 60307.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20575296 + 49730704 = 4536^2 + 7052^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70306003) 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, 15577 + ... + 19576.

Almost surely, 2^70306000 is an apocalyptic number.

It is an amenable number.

70306000 is an abundant number, since it is smaller than the sum of its proper divisors (99698744).

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

70306000 is a wasteful number, since it uses less digits than its factorization.

70306000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35176 (or 35160 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 70306000 is about 8384.8673215502. The cubic root of 70306000 is about 412.7281871853.

Adding to 70306000 its reverse (60307), we get a palindrome (70366307).

The spelling of 70306000 in words is "seventy million, three hundred six thousand".