70001370 has 48 divisors (see below), whose sum is σ = 184216032. Its totient is φ = 18440160.

The previous prime is 70001369. The next prime is 70001381. The reversal of 70001370 is 7310007.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2785 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (3837834).

Almost surely, 2^70001370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70001370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92108016).

70001370 is an abundant number, since it is smaller than the sum of its proper divisors (114214662).

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

70001370 is a wasteful number, since it uses less digits than its factorization.

70001370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9467 (or 9464 counting only the distinct ones).

The product of its (nonzero) digits is 147, while the sum is 18.

The square root of 70001370 is about 8366.6821380999. The cubic root of 70001370 is about 412.1312186113.

Adding to 70001370 its reverse (7310007), we get a palindrome (77311377).

The spelling of 70001370 in words is "seventy million, one thousand, three hundred seventy".