420896439 has 16 divisors (see below), whose sum is σ = 623881440. Its totient is φ = 280448640.

The previous prime is 420896431. The next prime is 420896453. The reversal of 420896439 is 934698024.

420896439 is a `hidden beast` number, since 4 + 208 + 9 + 6 + 439 = 666.

It is not a de Polignac number, because 420896439 - 2³ = 420896431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420896394 and 420896403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420896431) 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 15 ways as a sum of consecutive naturals, for example, 75529 + ... + 80909.

It is an arithmetic number, because the mean of its divisors is an integer number (38992590).

Almost surely, 2^420896439 is an apocalyptic number.

420896439 is a deficient number, since it is larger than the sum of its proper divisors (202985001).

420896439 is a wasteful number, since it uses less digits than its factorization.

420896439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8287 (or 8281 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 420896439 is about 20515.7607463140. The cubic root of 420896439 is about 749.4196630612.

The spelling of 420896439 in words is "four hundred twenty million, eight hundred ninety-six thousand, four hundred thirty-nine".