3980194654 has 4 divisors (see below), whose sum is σ = 5970291984. Its totient is φ = 1990097326.

The previous prime is 3980194633. The next prime is 3980194657. The reversal of 3980194654 is 4564910893.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3980194598 and 3980194607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980194657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 995048662 + ... + 995048665.

It is an arithmetic number, because the mean of its divisors is an integer number (1492572996).

Almost surely, 2^3980194654 is an apocalyptic number.

3980194654 is a deficient number, since it is larger than the sum of its proper divisors (1990097330).

3980194654 is a wasteful number, since it uses less digits than its factorization.

3980194654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990097329.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 3980194654 is about 63088.7839001514. The cubic root of 3980194654 is about 1584.7767970782.

The spelling of 3980194654 in words is "three billion, nine hundred eighty million, one hundred ninety-four thousand, six hundred fifty-four".