994416421 has 8 divisors (see below), whose sum is σ = 1000883520. Its totient is φ = 987959808.

The previous prime is 994416383. The next prime is 994416461. The reversal of 994416421 is 124614499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 994416421 - 2⁹ = 994415909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994416461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285925 + ... + 289381.

It is an arithmetic number, because the mean of its divisors is an integer number (125110440).

Almost surely, 2^994416421 is an apocalyptic number.

It is an amenable number.

994416421 is a deficient number, since it is larger than the sum of its proper divisors (6467099).

994416421 is a wasteful number, since it uses less digits than its factorization.

994416421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5243.

The product of its digits is 62208, while the sum is 40.

The square root of 994416421 is about 31534.3688853923. The cubic root of 994416421 is about 998.1353321750.

The spelling of 994416421 in words is "nine hundred ninety-four million, four hundred sixteen thousand, four hundred twenty-one".