70035440 has 20 divisors (see below), whose sum is σ = 162832584. Its totient is φ = 28014144.

The previous prime is 70035409. The next prime is 70035451. The reversal of 70035440 is 4453007.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 437642 + ... + 437801.

Almost surely, 2^70035440 is an apocalyptic number.

It is an amenable number.

70035440 is an abundant number, since it is smaller than the sum of its proper divisors (92797144).

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

70035440 is a wasteful number, since it uses less digits than its factorization.

70035440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875456 (or 875450 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 70035440 is about 8368.7179424330. The cubic root of 70035440 is about 412.1980698422.

Adding to 70035440 its reverse (4453007), we get a palindrome (74488447).

The spelling of 70035440 in words is "seventy million, thirty-five thousand, four hundred forty".