994958640 has 480 divisors, whose sum is σ = 3882418176. Its totient is φ = 235146240.

The previous prime is 994958623. The next prime is 994958659. The reversal of 994958640 is 46859499.

994958640 is a `hidden beast` number, since 99 + 495 + 8 + 64 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7834257 + ... + 7834383.

Almost surely, 2^994958640 is an apocalyptic number.

994958640 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 994958640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1941209088).

994958640 is an abundant number, since it is smaller than the sum of its proper divisors (2887459536).

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

994958640 is a wasteful number, since it uses less digits than its factorization.

994958640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 994958640 is about 31542.9649842877. The cubic root of 994958640 is about 998.3167148075.

The spelling of 994958640 in words is "nine hundred ninety-four million, nine hundred fifty-eight thousand, six hundred forty".