4091319738 has 48 divisors (see below), whose sum is σ = 9770132736. Its totient is φ = 1227006720.

The previous prime is 4091319737. The next prime is 4091319769. The reversal of 4091319738 is 8379131904.

It is a junction number, because it is equal to n+sod(n) for n = 4091319693 and 4091319702.

It is not an unprimeable number, because it can be changed into a prime (4091319737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87306 + ... + 125717.

It is an arithmetic number, because the mean of its divisors is an integer number (203544432).

Almost surely, 2^4091319738 is an apocalyptic number.

4091319738 is an abundant number, since it is smaller than the sum of its proper divisors (5678812998).

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

4091319738 is a wasteful number, since it uses less digits than its factorization.

4091319738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213139 (or 213136 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 4091319738 is about 63963.4250021057. The cubic root of 4091319738 is about 1599.3903586258.

The spelling of 4091319738 in words is "four billion, ninety-one million, three hundred nineteen thousand, seven hundred thirty-eight".