70072424 has 16 divisors (see below), whose sum is σ = 132390720. Its totient is φ = 34768240.

The previous prime is 70072417. The next prime is 70072463. The reversal of 70072424 is 42427007.

It is a junction number, because it is equal to n+sod(n) for n = 70072393 and 70072402.

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, 32384 + ... + 34479.

It is an arithmetic number, because the mean of its divisors is an integer number (8274420).

Almost surely, 2^70072424 is an apocalyptic number.

It is an amenable number.

70072424 is a deficient number, since it is larger than the sum of its proper divisors (62318296).

70072424 is a wasteful number, since it uses less digits than its factorization.

70072424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67000 (or 66996 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 70072424 is about 8370.9273082497. The cubic root of 70072424 is about 412.2706143080.

The spelling of 70072424 in words is "seventy million, seventy-two thousand, four hundred twenty-four".