70030800 has 270 divisors, whose sum is σ = 283416198. Its totient is φ = 15966720.

The previous prime is 70030787. The next prime is 70030801. The reversal of 70030800 is 803007.

It can be written as a sum of positive squares in 3 ways, for example, as 7683984 + 62346816 = 2772^2 + 7896^2 .

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 (70030801) 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 53 ways as a sum of consecutive naturals, for example, 176202 + ... + 176598.

Almost surely, 2^70030800 is an apocalyptic number.

70030800 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70030800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141708099).

70030800 is an abundant number, since it is smaller than the sum of its proper divisors (213385398).

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

70030800 is a wasteful number, since it uses less digits than its factorization.

70030800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 70030800 is about 8368.4407149719. The cubic root of 70030800 is about 412.1889666354.

Adding to 70030800 its reverse (803007), we get a palindrome (70833807).

The spelling of 70030800 in words is "seventy million, thirty thousand, eight hundred".