425985441 has 32 divisors (see below), whose sum is σ = 661098240. Its totient is φ = 238961664.

The previous prime is 425985409. The next prime is 425985457. The reversal of 425985441 is 144589524.

It is not a de Polignac number, because 425985441 - 2⁵ = 425985409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 425985393 and 425985402.

It is not an unprimeable number, because it can be changed into a prime (425985481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411861 + ... + 412893.

It is an arithmetic number, because the mean of its divisors is an integer number (20659320).

Almost surely, 2^425985441 is an apocalyptic number.

It is an amenable number.

425985441 is a deficient number, since it is larger than the sum of its proper divisors (235112799).

425985441 is a wasteful number, since it uses less digits than its factorization.

425985441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385.

The product of its digits is 230400, while the sum is 42.

The square root of 425985441 is about 20639.4147446094. The cubic root of 425985441 is about 752.4279484955.

It can be divided in two parts, 425985 and 441, that added together give a triangular number (426426 = T₉₂₃).

The spelling of 425985441 in words is "four hundred twenty-five million, nine hundred eighty-five thousand, four hundred forty-one".