425440943 has 4 divisors (see below), whose sum is σ = 425482200. Its totient is φ = 425399688.

The previous prime is 425440937. The next prime is 425440999. The reversal of 425440943 is 349044524.

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 425440943 - 2¹⁶ = 425375407 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 (425440243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9908 + ... + 30806.

It is an arithmetic number, because the mean of its divisors is an integer number (106370550).

Almost surely, 2^425440943 is an apocalyptic number.

425440943 is a deficient number, since it is larger than the sum of its proper divisors (41257).

425440943 is a wasteful number, since it uses less digits than its factorization.

425440943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41256.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 425440943 is about 20626.2197942328. The cubic root of 425440943 is about 752.1072253311.

The spelling of 425440943 in words is "four hundred twenty-five million, four hundred forty thousand, nine hundred forty-three".