70127840 has 48 divisors (see below), whose sum is σ = 169546608. Its totient is φ = 27396096.

The previous prime is 70127833. The next prime is 70127861. The reversal of 70127840 is 4872107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1784 + ... + 11976.

It is an arithmetic number, because the mean of its divisors is an integer number (3532221).

Almost surely, 2^70127840 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 70127840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84773304).

70127840 is an abundant number, since it is smaller than the sum of its proper divisors (99418768).

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

70127840 is a wasteful number, since it uses less digits than its factorization.

70127840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251 (or 10243 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 70127840 is about 8374.2366816325. The cubic root of 70127840 is about 412.3792655534.

Adding to 70127840 its reverse (4872107), we get a palindrome (74999947).

The spelling of 70127840 in words is "seventy million, one hundred twenty-seven thousand, eight hundred forty".