426381047 has 4 divisors (see below), whose sum is σ = 426433920. Its totient is φ = 426328176.

The previous prime is 426381041. The next prime is 426381073. The reversal of 426381047 is 740183624.

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

It is a cyclic number.

It is not a de Polignac number, because 426381047 - 2¹⁴ = 426364663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426380998 and 426381016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426381041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11543 + ... + 31400.

It is an arithmetic number, because the mean of its divisors is an integer number (106608480).

Almost surely, 2^426381047 is an apocalyptic number.

426381047 is a deficient number, since it is larger than the sum of its proper divisors (52873).

426381047 is an equidigital number, since it uses as much as digits as its factorization.

426381047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52872.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 426381047 is about 20648.9962710055. The cubic root of 426381047 is about 752.6607991083.

The spelling of 426381047 in words is "four hundred twenty-six million, three hundred eighty-one thousand, forty-seven".