420229701 has 10 divisors (see below), whose sum is σ = 627750662. Its totient is φ = 280153080.

The previous prime is 420229697. The next prime is 420229703. The reversal of 420229701 is 107922024.

It can be written as a sum of positive squares in only one way, i.e., 397045476 + 23184225 = 19926^2 + 4815^2 .

It is not a de Polignac number, because 420229701 - 2² = 420229697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420229703) 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 9 ways as a sum of consecutive naturals, for example, 2593930 + ... + 2594091.

Almost surely, 2^420229701 is an apocalyptic number.

It is an amenable number.

420229701 is a deficient number, since it is larger than the sum of its proper divisors (207520961).

420229701 is an equidigital number, since it uses as much as digits as its factorization.

420229701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188033 (or 5188024 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 420229701 is about 20499.5048964603. The cubic root of 420229701 is about 749.0237377675.

The spelling of 420229701 in words is "four hundred twenty million, two hundred twenty-nine thousand, seven hundred one".