70085448 has 24 divisors (see below), whose sum is σ = 189814950. Its totient is φ = 23361792.

The previous prime is 70085447. The next prime is 70085459. The reversal of 70085448 is 84458007.

It can be written as a sum of positive squares in only one way, i.e., 57426084 + 12659364 = 7578^2 + 3558^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70085443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 486633 + ... + 486776.

Almost surely, 2^70085448 is an apocalyptic number.

It is an amenable number.

70085448 is an abundant number, since it is smaller than the sum of its proper divisors (119729502).

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

70085448 is a wasteful number, since it uses less digits than its factorization.

70085448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973421 (or 973414 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 70085448 is about 8371.7052026454. The cubic root of 70085448 is about 412.2961549299.

The spelling of 70085448 in words is "seventy million, eighty-five thousand, four hundred forty-eight".