994467438 has 24 divisors (see below), whose sum is σ = 2170186200. Its totient is φ = 329103504.

The previous prime is 994467437. The next prime is 994467443. The reversal of 994467438 is 834764499.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994467431) 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, 196233 + ... + 201236.

It is an arithmetic number, because the mean of its divisors is an integer number (90424425).

Almost surely, 2^994467438 is an apocalyptic number.

994467438 is an abundant number, since it is smaller than the sum of its proper divisors (1175718762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

994467438 is a wasteful number, since it uses less digits than its factorization.

994467438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397616 (or 397613 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 994467438 is about 31535.1777860852. The cubic root of 994467438 is about 998.1524011475.

The spelling of 994467438 in words is "nine hundred ninety-four million, four hundred sixty-seven thousand, four hundred thirty-eight".