70426520 has 32 divisors (see below), whose sum is σ = 162328320. Its totient is φ = 27482880.

The previous prime is 70426511. The next prime is 70426549. The reversal of 70426520 is 2562407.

It is a self number, because there is not a number n which added to its sum of digits gives 70426520.

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 7 ways as a sum of consecutive naturals, for example, 19832 + ... + 23111.

It is an arithmetic number, because the mean of its divisors is an integer number (5072760).

Almost surely, 2^70426520 is an apocalyptic number.

It is an amenable number.

70426520 is an abundant number, since it is smaller than the sum of its proper divisors (91901800).

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

70426520 is a wasteful number, since it uses less digits than its factorization.

70426520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42995 (or 42991 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 70426520 is about 8392.0510007983. The cubic root of 70426520 is about 412.9638882883.

Adding to 70426520 its reverse (2562407), we get a palindrome (72988927).

The spelling of 70426520 in words is "seventy million, four hundred twenty-six thousand, five hundred twenty".