70881340 has 12 divisors (see below), whose sum is σ = 148850856. Its totient is φ = 28352528.

The previous prime is 70881323. The next prime is 70881353. The reversal of 70881340 is 4318807.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1772014 + ... + 1772053.

It is an arithmetic number, because the mean of its divisors is an integer number (12404238).

Almost surely, 2^70881340 is an apocalyptic number.

It is an amenable number.

70881340 is an abundant number, since it is smaller than the sum of its proper divisors (77969516).

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

70881340 is a wasteful number, since it uses less digits than its factorization.

70881340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544076 (or 3544074 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 70881340 is about 8419.1056532152. The cubic root of 70881340 is about 413.8509658277.

The spelling of 70881340 in words is "seventy million, eight hundred eighty-one thousand, three hundred forty".