994592421 has 24 divisors (see below), whose sum is σ = 1464540480. Its totient is φ = 650270016.

The previous prime is 994592413. The next prime is 994592447. The reversal of 994592421 is 124295499.

It is not a de Polignac number, because 994592421 - 2³ = 994592413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994592491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136960 + ... + 144038.

It is an arithmetic number, because the mean of its divisors is an integer number (61022520).

Almost surely, 2^994592421 is an apocalyptic number.

It is an amenable number.

994592421 is a deficient number, since it is larger than the sum of its proper divisors (469948059).

994592421 is a wasteful number, since it uses less digits than its factorization.

994592421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7385 (or 7382 counting only the distinct ones).

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

The square root of 994592421 is about 31537.1593679583. The cubic root of 994592421 is about 998.1942147692.

The spelling of 994592421 in words is "nine hundred ninety-four million, five hundred ninety-two thousand, four hundred twenty-one".