426571949 has 4 divisors (see below), whose sum is σ = 430347036. Its totient is φ = 422796864.

The previous prime is 426571909. The next prime is 426571979. The reversal of 426571949 is 949175624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31158724 + 395413225 = 5582^2 + 19885^2 .

It is a cyclic number.

It is not a de Polignac number, because 426571949 - 2²⁸ = 158136493 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 (426571909) 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, 1887374 + ... + 1887599.

It is an arithmetic number, because the mean of its divisors is an integer number (107586759).

Almost surely, 2^426571949 is an apocalyptic number.

It is an amenable number.

426571949 is a deficient number, since it is larger than the sum of its proper divisors (3775087).

426571949 is a wasteful number, since it uses less digits than its factorization.

426571949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775086.

The product of its digits is 544320, while the sum is 47.

The square root of 426571949 is about 20653.6183028543. The cubic root of 426571949 is about 752.7731110215.

The spelling of 426571949 in words is "four hundred twenty-six million, five hundred seventy-one thousand, nine hundred forty-nine".