70862440 has 56 divisors (see below), whose sum is σ = 175384530. Its totient is φ = 25768160.

The previous prime is 70862411. The next prime is 70862453. The reversal of 70862440 is 4426807.

It can be written as a sum of positive squares in only one way, i.e., 63776196 + 7086244 = 7986^2 + 2662^2 .

It is a zygodrome in base 3.

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 13 ways as a sum of consecutive naturals, for example, 6442035 + ... + 6442045.

Almost surely, 2^70862440 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 70862440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87692265).

70862440 is an abundant number, since it is smaller than the sum of its proper divisors (104522090).

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

70862440 is an frugal number, since it uses more digits than its factorization.

70862440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 70862440 is about 8417.9831313682. The cubic root of 70862440 is about 413.8141790958.

The spelling of 70862440 in words is "seventy million, eight hundred sixty-two thousand, four hundred forty".