4400142 has 16 divisors (see below), whose sum is σ = 8912640. Its totient is φ = 1447992.

The previous prime is 4400131. The next prime is 4400167. The reversal of 4400142 is 2410044.

It is a super-2 number, since 2×4400142² = 38722499240328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4168 + ... + 5115.

It is an arithmetic number, because the mean of its divisors is an integer number (557040).

Almost surely, 2^4400142 is an apocalyptic number.

4400142 is an abundant number, since it is smaller than the sum of its proper divisors (4512498).

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

4400142 is a wasteful number, since it uses less digits than its factorization.

4400142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9367.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4400142 is about 2097.6515439891. The cubic root of 4400142 is about 163.8660168833.

Adding to 4400142 its reverse (2410044), we get a palindrome (6810186).

The spelling of 4400142 in words is "four million, four hundred thousand, one hundred forty-two".