420407070 has 16 divisors (see below), whose sum is σ = 1008977040. Its totient is φ = 112108544.

The previous prime is 420407063. The next prime is 420407081. The reversal of 420407070 is 70704024.

It is a self number, because there is not a number n which added to its sum of digits gives 420407070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7006755 + ... + 7006814.

It is an arithmetic number, because the mean of its divisors is an integer number (63061065).

Almost surely, 2^420407070 is an apocalyptic number.

420407070 is an abundant number, since it is smaller than the sum of its proper divisors (588569970).

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

420407070 is a wasteful number, since it uses less digits than its factorization.

420407070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14013579.

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

The square root of 420407070 is about 20503.8306177163. The cubic root of 420407070 is about 749.1291046687.

The spelling of 420407070 in words is "four hundred twenty million, four hundred seven thousand, seventy".