420649426 has 8 divisors (see below), whose sum is σ = 631061424. Its totient is φ = 210295620.

The previous prime is 420649403. The next prime is 420649451. The reversal of 420649426 is 624946024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 18981 + ... + 34663.

It is an arithmetic number, because the mean of its divisors is an integer number (78882678).

Almost surely, 2^420649426 is an apocalyptic number.

420649426 is a deficient number, since it is larger than the sum of its proper divisors (210411998).

420649426 is a wasteful number, since it uses less digits than its factorization.

420649426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29096.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 420649426 is about 20509.7397838198. The cubic root of 420649426 is about 749.2730295055.

The spelling of 420649426 in words is "four hundred twenty million, six hundred forty-nine thousand, four hundred twenty-six".