420998841 has 12 divisors (see below), whose sum is σ = 608424960. Its totient is φ = 280520280.

The previous prime is 420998741. The next prime is 420998843. The reversal of 420998841 is 148899024.

It is not a de Polignac number, because 420998841 - 2¹⁸ = 420736697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420998843) 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, 7920 + ... + 30078.

It is an arithmetic number, because the mean of its divisors is an integer number (50702080).

Almost surely, 2^420998841 is an apocalyptic number.

It is an amenable number.

420998841 is a deficient number, since it is larger than the sum of its proper divisors (187426119).

420998841 is a wasteful number, since it uses less digits than its factorization.

420998841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24276 (or 24273 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 420998841 is about 20518.2562855619. The cubic root of 420998841 is about 749.4804348191.

The spelling of 420998841 in words is "four hundred twenty million, nine hundred ninety-eight thousand, eight hundred forty-one".