420026705 has 16 divisors (see below), whose sum is σ = 576650880. Its totient is φ = 287711232.

The previous prime is 420026683. The next prime is 420026707. The reversal of 420026705 is 507620024.

It is a cyclic number.

It is not a de Polignac number, because 420026705 - 2⁶ = 420026641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420026707) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 29777 + ... + 41553.

It is an arithmetic number, because the mean of its divisors is an integer number (36040680).

Almost surely, 2^420026705 is an apocalyptic number.

It is an amenable number.

420026705 is a deficient number, since it is larger than the sum of its proper divisors (156624175).

420026705 is a wasteful number, since it uses less digits than its factorization.

420026705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12808.

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

The square root of 420026705 is about 20494.5530568490. The cubic root of 420026705 is about 748.9031106344.

Adding to 420026705 its reverse (507620024), we get a palindrome (927646729).

The spelling of 420026705 in words is "four hundred twenty million, twenty-six thousand, seven hundred five".