70702440 has 32 divisors (see below), whose sum is σ = 212107680. Its totient is φ = 18853952.

The previous prime is 70702421. The next prime is 70702441. The reversal of 70702440 is 4420707.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 70702440.

It is not an unprimeable number, because it can be changed into a prime (70702441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294474 + ... + 294713.

It is an arithmetic number, because the mean of its divisors is an integer number (6628365).

Almost surely, 2^70702440 is an apocalyptic number.

It is an amenable number.

70702440 is an abundant number, since it is smaller than the sum of its proper divisors (141405240).

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

70702440 is a wasteful number, since it uses less digits than its factorization.

70702440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589201 (or 589197 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 70702440 is about 8408.4742968032. The cubic root of 70702440 is about 413.5024946396.

The spelling of 70702440 in words is "seventy million, seven hundred two thousand, four hundred forty".