994406518 has 16 divisors (see below), whose sum is σ = 1778814720. Its totient is φ = 407644776.

The previous prime is 994406507. The next prime is 994406521. The reversal of 994406518 is 815604499.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543788 + ... + 1544431.

It is an arithmetic number, because the mean of its divisors is an integer number (111175920).

Almost surely, 2^994406518 is an apocalyptic number.

994406518 is a deficient number, since it is larger than the sum of its proper divisors (784408202).

994406518 is a wasteful number, since it uses less digits than its factorization.

994406518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088251.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 994406518 is about 31534.2118658450. The cubic root of 994406518 is about 998.1320188190.

The spelling of 994406518 in words is "nine hundred ninety-four million, four hundred six thousand, five hundred eighteen".