3994445376 has 84 divisors (see below), whose sum is σ = 11643512400. Its totient is φ = 1308903168.

The previous prime is 3994445347. The next prime is 3994445383. The reversal of 3994445376 is 6735444993.

It is a happy number.

3994445376 is a `hidden beast` number, since 39 + 94 + 4 + 453 + 76 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24786 + ... + 92753.

Almost surely, 2^3994445376 is an apocalyptic number.

3994445376 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3994445376 is an abundant number, since it is smaller than the sum of its proper divisors (7649067024).

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

3994445376 is a wasteful number, since it uses less digits than its factorization.

3994445376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117616 (or 117603 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 54.

The square root of 3994445376 is about 63201.6247892410. The cubic root of 3994445376 is about 1586.6659269194.

The spelling of 3994445376 in words is "three billion, nine hundred ninety-four million, four hundred forty-five thousand, three hundred seventy-six".