4157939444 has 12 divisors (see below), whose sum is σ = 7276881024. Its totient is φ = 2078830584.

The previous prime is 4157939413. The next prime is 4157939477. The reversal of 4157939444 is 4449397514.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4157939392 and 4157939401.

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, 62987 + ... + 110829.

It is an arithmetic number, because the mean of its divisors is an integer number (606406752).

Almost surely, 2^4157939444 is an apocalyptic number.

It is an amenable number.

4157939444 is a deficient number, since it is larger than the sum of its proper divisors (3118941580).

4157939444 is a wasteful number, since it uses less digits than its factorization.

4157939444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69574 (or 69572 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 4157939444 is about 64482.0862255557. The cubic root of 4157939444 is about 1608.0247169332.

The spelling of 4157939444 in words is "four billion, one hundred fifty-seven million, nine hundred thirty-nine thousand, four hundred forty-four".