426409949 has 8 divisors (see below), whose sum is σ = 508513920. Its totient is φ = 349603056.

The previous prime is 426409943. The next prime is 426409969. The reversal of 426409949 is 949904624.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426409949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426409943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324094 + ... + 1324415.

It is an arithmetic number, because the mean of its divisors is an integer number (63564240).

Almost surely, 2^426409949 is an apocalyptic number.

It is an amenable number.

426409949 is a deficient number, since it is larger than the sum of its proper divisors (82103971).

426409949 is a wasteful number, since it uses less digits than its factorization.

426409949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648539.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 426409949 is about 20649.6960994587. The cubic root of 426409949 is about 752.6778049540.

The spelling of 426409949 in words is "four hundred twenty-six million, four hundred nine thousand, nine hundred forty-nine".