419694921 has 12 divisors (see below), whose sum is σ = 620324848. Its totient is φ = 273289464.

The previous prime is 419694917. The next prime is 419694937. The reversal of 419694921 is 129496914.

It is not a de Polignac number, because 419694921 - 2² = 419694917 is a prime.

It is a super-2 number, since 2×419694921² = 352287653426392482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (419694991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 541855 + ... + 542628.

Almost surely, 2^419694921 is an apocalyptic number.

It is an amenable number.

419694921 is a deficient number, since it is larger than the sum of its proper divisors (200629927).

419694921 is a wasteful number, since it uses less digits than its factorization.

419694921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084532 (or 1084529 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 419694921 is about 20486.4570143302. The cubic root of 419694921 is about 748.7058695863.

The spelling of 419694921 in words is "four hundred nineteen million, six hundred ninety-four thousand, nine hundred twenty-one".