994523940 has 48 divisors (see below), whose sum is σ = 3094076160. Its totient is φ = 265206240.

The previous prime is 994523939. The next prime is 994523993. The reversal of 994523940 is 49325499.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920316 + ... + 921395.

It is an arithmetic number, because the mean of its divisors is an integer number (64459920).

Almost surely, 2^994523940 is an apocalyptic number.

994523940 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

994523940 is an abundant number, since it is smaller than the sum of its proper divisors (2099552220).

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

994523940 is a wasteful number, since it uses less digits than its factorization.

994523940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841729 (or 1841721 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 994523940 is about 31536.0736300510. The cubic root of 994523940 is about 998.1713045782.

The spelling of 994523940 in words is "nine hundred ninety-four million, five hundred twenty-three thousand, nine hundred forty".