4000251442 has 8 divisors (see below), whose sum is σ = 6545866032. Its totient is φ = 1818296100.

The previous prime is 4000251427. The next prime is 4000251443. The reversal of 4000251442 is 2441520004.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 181829611 = 4000251442 / (4 + 0 + 0 + 0 + 2 + 5 + 1 + 4 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (4000251443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90914784 + ... + 90914827.

It is an arithmetic number, because the mean of its divisors is an integer number (818233254).

Almost surely, 2^4000251442 is an apocalyptic number.

4000251442 is a deficient number, since it is larger than the sum of its proper divisors (2545614590).

4000251442 is a wasteful number, since it uses less digits than its factorization.

4000251442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181829624.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 4000251442 is about 63247.5409956782. The cubic root of 4000251442 is about 1587.4343128792.

Adding to 4000251442 its reverse (2441520004), we get a palindrome (6441771446).

The spelling of 4000251442 in words is "four billion, two hundred fifty-one thousand, four hundred forty-two".