4001458749 has 4 divisors (see below), whose sum is σ = 5335278336. Its totient is φ = 2667639164.

The previous prime is 4001458717. The next prime is 4001458763. The reversal of 4001458749 is 9478541004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4001458749 - 2⁵ = 4001458717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4001458749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001458709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666909789 + ... + 666909794.

It is an arithmetic number, because the mean of its divisors is an integer number (1333819584).

Almost surely, 2^4001458749 is an apocalyptic number.

It is an amenable number.

4001458749 is a deficient number, since it is larger than the sum of its proper divisors (1333819587).

4001458749 is a wasteful number, since it uses less digits than its factorization.

4001458749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333819586.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 4001458749 is about 63257.0845755636. The cubic root of 4001458749 is about 1587.5939968234.

The spelling of 4001458749 in words is "four billion, one million, four hundred fifty-eight thousand, seven hundred forty-nine".