420661126 has 4 divisors (see below), whose sum is σ = 630991692. Its totient is φ = 210330562.

The previous prime is 420661123. The next prime is 420661133. The reversal of 420661126 is 621166024.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 420661094 and 420661103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420661123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105165280 + ... + 105165283.

It is an arithmetic number, because the mean of its divisors is an integer number (157747923).

Almost surely, 2^420661126 is an apocalyptic number.

420661126 is a deficient number, since it is larger than the sum of its proper divisors (210330566).

420661126 is a wasteful number, since it uses less digits than its factorization.

420661126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210330565.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 420661126 is about 20510.0250121739. The cubic root of 420661126 is about 749.2799762348.

The spelling of 420661126 in words is "four hundred twenty million, six hundred sixty-one thousand, one hundred twenty-six".