994409351 has 24 divisors (see below), whose sum is σ = 1116762624. Its totient is φ = 884126880.

The previous prime is 994409303. The next prime is 994409359. The reversal of 994409351 is 153904499.

It is a happy number.

It is not a de Polignac number, because 994409351 - 2²² = 990215047 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 (994409359) 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, 1817660 + ... + 1818206.

It is an arithmetic number, because the mean of its divisors is an integer number (46531776).

Almost surely, 2^994409351 is an apocalyptic number.

994409351 is a deficient number, since it is larger than the sum of its proper divisors (122353273).

994409351 is a wasteful number, since it uses less digits than its factorization.

994409351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 994409351 is about 31534.2567852804. The cubic root of 994409351 is about 998.1329666893.

The spelling of 994409351 in words is "nine hundred ninety-four million, four hundred nine thousand, three hundred fifty-one".