426378023 has 4 divisors (see below), whose sum is σ = 426425688. Its totient is φ = 426330360.

The previous prime is 426378013. The next prime is 426378083. The reversal of 426378023 is 320873624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 426378023 - 2⁸ = 426377767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426378013) 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 in 3 ways as a sum of consecutive naturals, for example, 5933 + ... + 29798.

It is an arithmetic number, because the mean of its divisors is an integer number (106606422).

Almost surely, 2^426378023 is an apocalyptic number.

426378023 is a deficient number, since it is larger than the sum of its proper divisors (47665).

426378023 is a wasteful number, since it uses less digits than its factorization.

426378023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47664.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 426378023 is about 20648.9230469775. The cubic root of 426378023 is about 752.6590197518.

The spelling of 426378023 in words is "four hundred twenty-six million, three hundred seventy-eight thousand, twenty-three".