994003920 has 480 divisors, whose sum is σ = 4247942400. Its totient is φ = 209184768.

The previous prime is 994003897. The next prime is 994003937. The reversal of 994003920 is 29300499.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2555086 + ... + 2555474.

It is an arithmetic number, because the mean of its divisors is an integer number (8849880).

Almost surely, 2^994003920 is an apocalyptic number.

994003920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994003920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2123971200).

994003920 is an abundant number, since it is smaller than the sum of its proper divisors (3253938480).

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

994003920 is a wasteful number, since it uses less digits than its factorization.

994003920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 994003920 is about 31527.8277082326. The cubic root of 994003920 is about 997.9972985310.

The spelling of 994003920 in words is "nine hundred ninety-four million, three thousand, nine hundred twenty".