70807420 has 12 divisors (see below), whose sum is σ = 148695624. Its totient is φ = 28322960.

The previous prime is 70807411. The next prime is 70807423. The reversal of 70807420 is 2470807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70807423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1770166 + ... + 1770205.

It is an arithmetic number, because the mean of its divisors is an integer number (12391302).

Almost surely, 2^70807420 is an apocalyptic number.

It is an amenable number.

70807420 is an abundant number, since it is smaller than the sum of its proper divisors (77888204).

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

70807420 is a wasteful number, since it uses less digits than its factorization.

70807420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540380 (or 3540378 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 70807420 is about 8414.7144930770. The cubic root of 70807420 is about 413.7070515808.

The spelling of 70807420 in words is "seventy million, eight hundred seven thousand, four hundred twenty".