994540 has 12 divisors (see below), whose sum is σ = 2088576. Its totient is φ = 397808.

The previous prime is 994501. The next prime is 994549. The reversal of 994540 is 45499.

994540 = T₆₄ + T₆₅ + ... + T₁₈₃.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (994549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24844 + ... + 24883.

It is an arithmetic number, because the mean of its divisors is an integer number (174048).

2⁹⁹⁴⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

994540 is an abundant number, since it is smaller than the sum of its proper divisors (1094036).

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

994540 is a wasteful number, since it uses less digits than its factorization.

994540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49736 (or 49734 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 994540 is about 997.2662633419. The cubic root of 994540 is about 99.8176677516.

It can be divided in two parts, 9 and 94540, that multiplied together give a triangular number (850860 = T₁₃₀₄).

The spelling of 994540 in words is "nine hundred ninety-four thousand, five hundred forty".