4029749991 has 12 divisors (see below), whose sum is σ = 5824841880. Its totient is φ = 2684611440.

The previous prime is 4029749987. The next prime is 4029749993. The reversal of 4029749991 is 1999479204.

4029749991 is a `hidden beast` number, since 40 + 29 + 7 + 499 + 91 = 666.

4029749991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4029749991 - 2² = 4029749987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4029749993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143805 + ... + 169526.

It is an arithmetic number, because the mean of its divisors is an integer number (485403490).

Almost surely, 2^4029749991 is an apocalyptic number.

4029749991 is a deficient number, since it is larger than the sum of its proper divisors (1795091889).

4029749991 is a wasteful number, since it uses less digits than its factorization.

4029749991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314766 (or 314763 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 4029749991 is about 63480.3118376084. The cubic root of 4029749991 is about 1591.3267660818.

The spelling of 4029749991 in words is "four billion, twenty-nine million, seven hundred forty-nine thousand, nine hundred ninety-one".