3994583040 has 640 divisors, whose sum is σ = 16747600320. Its totient is φ = 891813888.

The previous prime is 3994583017. The next prime is 3994583069. The reversal of 3994583040 is 403854993.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (640).

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 39 ways as a sum of consecutive naturals, for example, 92897259 + ... + 92897301.

Almost surely, 2^3994583040 is an apocalyptic number.

3994583040 is a gapful number since it is divisible by the number (30) 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 3994583040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8373800160).

3994583040 is an abundant number, since it is smaller than the sum of its proper divisors (12753017280).

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

3994583040 is an frugal number, since it uses more digits than its factorization.

3994583040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 3994583040 is about 63202.7138657827. The cubic root of 3994583040 is about 1586.6841542534.

The spelling of 3994583040 in words is "three billion, nine hundred ninety-four million, five hundred eighty-three thousand, forty".