70091244 has 60 divisors (see below), whose sum is σ = 184232664. Its totient is φ = 23236416.

The previous prime is 70091243. The next prime is 70091261. The reversal of 70091244 is 44219007.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (70091243) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73072 + ... + 74024.

Almost surely, 2^70091244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70091244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92116332).

70091244 is an abundant number, since it is smaller than the sum of its proper divisors (114141420).

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

70091244 is a wasteful number, since it uses less digits than its factorization.

70091244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 70091244 is about 8372.0513615242. The cubic root of 70091244 is about 412.3075201168.

The spelling of 70091244 in words is "seventy million, ninety-one thousand, two hundred forty-four".