70009472 has 32 divisors (see below), whose sum is σ = 150204180. Its totient is φ = 32311296.

The previous prime is 70009441. The next prime is 70009477. The reversal of 70009472 is 27490007.

It can be written as a sum of positive squares in 2 ways, for example, as 53816896 + 16192576 = 7336^2 + 4024^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (70009477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19373 + ... + 22700.

Almost surely, 2^70009472 is an apocalyptic number.

It is an amenable number.

70009472 is an abundant number, since it is smaller than the sum of its proper divisors (80194708).

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

70009472 is a wasteful number, since it uses less digits than its factorization.

70009472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42100 (or 42088 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 70009472 is about 8367.1663064624. The cubic root of 70009472 is about 412.1471181017.

Adding to 70009472 its reverse (27490007), we get a palindrome (97499479).

The spelling of 70009472 in words is "seventy million, nine thousand, four hundred seventy-two".