420306726 has 16 divisors (see below), whose sum is σ = 960701184. Its totient is φ = 120087624.

The previous prime is 420306721. The next prime is 420306727. The reversal of 420306726 is 627603024.

It is a junction number, because it is equal to n+sod(n) for n = 420306693 and 420306702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420306721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5003610 + ... + 5003693.

It is an arithmetic number, because the mean of its divisors is an integer number (60043824).

Almost surely, 2^420306726 is an apocalyptic number.

420306726 is an abundant number, since it is smaller than the sum of its proper divisors (540394458).

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

420306726 is a wasteful number, since it uses less digits than its factorization.

420306726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10007315.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 420306726 is about 20501.3835142900. The cubic root of 420306726 is about 749.0694984778.

The spelling of 420306726 in words is "four hundred twenty million, three hundred six thousand, seven hundred twenty-six".