994259421 has 8 divisors (see below), whose sum is σ = 1472976960. Its totient is φ = 662839596.

The previous prime is 994259419. The next prime is 994259423. The reversal of 994259421 is 124952499.

It is an interprime number because it is at equal distance from previous prime (994259419) and next prime (994259423).

It is not a de Polignac number, because 994259421 - 2¹ = 994259419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994259423) 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 7 ways as a sum of consecutive naturals, for example, 18412185 + ... + 18412238.

It is an arithmetic number, because the mean of its divisors is an integer number (184122120).

Almost surely, 2^994259421 is an apocalyptic number.

It is an amenable number.

994259421 is a deficient number, since it is larger than the sum of its proper divisors (478717539).

994259421 is a wasteful number, since it uses less digits than its factorization.

994259421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36824432 (or 36824426 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 994259421 is about 31531.8794397036. The cubic root of 994259421 is about 998.0828003612.

The spelling of 994259421 in words is "nine hundred ninety-four million, two hundred fifty-nine thousand, four hundred twenty-one".