994540919 has 16 divisors (see below), whose sum is σ = 1074977568. Its totient is φ = 916611072.

The previous prime is 994540909. The next prime is 994540927. The reversal of 994540919 is 919045499.

It is a cyclic number.

It is not a de Polignac number, because 994540919 - 2⁸ = 994540663 is a prime.

It is a super-2 number, since 2×994540919² = 1978223279130729122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994540909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816599 + ... + 817815.

It is an arithmetic number, because the mean of its divisors is an integer number (67186098).

Almost surely, 2^994540919 is an apocalyptic number.

994540919 is a deficient number, since it is larger than the sum of its proper divisors (80436649).

994540919 is a wasteful number, since it uses less digits than its factorization.

994540919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 994540919 is about 31536.3428285526. The cubic root of 994540919 is about 998.1769849691.

The spelling of 994540919 in words is "nine hundred ninety-four million, five hundred forty thousand, nine hundred nineteen".