4198439644 has 12 divisors (see below), whose sum is σ = 8396879344. Its totient is φ = 1799331264.

The previous prime is 4198439621. The next prime is 4198439653. The reversal of 4198439644 is 4469348914.

4198439644 is an admirable number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4198439591 and 4198439600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74972109 + ... + 74972164.

Almost surely, 2^4198439644 is an apocalyptic number.

It is an amenable number.

4198439644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4198439644 is a wasteful number, since it uses less digits than its factorization.

4198439644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149944284 (or 149944282 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The square root of 4198439644 is about 64795.3674578669. The cubic root of 4198439644 is about 1613.2288178581.

The spelling of 4198439644 in words is "four billion, one hundred ninety-eight million, four hundred thirty-nine thousand, six hundred forty-four".