4004251642 has 8 divisors (see below), whose sum is σ = 6008206932. Its totient is φ = 2001516000.

The previous prime is 4004251619. The next prime is 4004251661. The reversal of 4004251642 is 2461524004.

It can be written as a sum of positive squares in 2 ways, for example, as 3005122761 + 999128881 = 54819^2 + 31609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4004251642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296659 + ... + 309862.

Almost surely, 2^4004251642 is an apocalyptic number.

4004251642 is a deficient number, since it is larger than the sum of its proper divisors (2003955290).

4004251642 is a wasteful number, since it uses less digits than its factorization.

4004251642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609824.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 4004251642 is about 63279.1564577152. The cubic root of 4004251642 is about 1587.9632745664.

Adding to 4004251642 its reverse (2461524004), we get a palindrome (6465775646).

The spelling of 4004251642 in words is "four billion, four million, two hundred fifty-one thousand, six hundred forty-two".