420454657226 has 16 divisors (see below), whose sum is σ = 632514115464. Its totient is φ = 209617196544.

The previous prime is 420454657223. The next prime is 420454657307. The reversal of 420454657226 is 622756454024.

It can be written as a sum of positive squares in 4 ways, for example, as 275787774025 + 144666883201 = 525155^2 + 380351^2 .

It is not an unprimeable number, because it can be changed into a prime (420454657223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322750 + ... + 1609526.

Almost surely, 2^420454657226 is an apocalyptic number.

420454657226 is a deficient number, since it is larger than the sum of its proper divisors (212059458238).

420454657226 is a wasteful number, since it uses less digits than its factorization.

420454657226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288905.

The product of its (nonzero) digits is 3225600, while the sum is 47.

The spelling of 420454657226 in words is "four hundred twenty billion, four hundred fifty-four million, six hundred fifty-seven thousand, two hundred twenty-six".