70840544 has 24 divisors (see below), whose sum is σ = 139747608. Its totient is φ = 35349120.

The previous prime is 70840543. The next prime is 70840577. The reversal of 70840544 is 44504807.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 70840544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70840541) by changing a digit.

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, 16334 + ... + 20210.

It is an arithmetic number, because the mean of its divisors is an integer number (5822817).

Almost surely, 2^70840544 is an apocalyptic number.

It is an amenable number.

70840544 is a deficient number, since it is larger than the sum of its proper divisors (68907064).

70840544 is a wasteful number, since it uses less digits than its factorization.

70840544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458 (or 4450 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 70840544 is about 8416.6824818333. The cubic root of 70840544 is about 413.7715528061.

The spelling of 70840544 in words is "seventy million, eight hundred forty thousand, five hundred forty-four".