142440214 has 16 divisors (see below), whose sum is σ = 244569600. Its totient is φ = 60949224.

The previous prime is 142440211. The next prime is 142440217. The reversal of 142440214 is 412044241.

It is an interprime number because it is at equal distance from previous prime (142440211) and next prime (142440217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142440211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507 + ... + 16945.

It is an arithmetic number, because the mean of its divisors is an integer number (15285600).

Almost surely, 2^142440214 is an apocalyptic number.

142440214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142440214 is a deficient number, since it is larger than the sum of its proper divisors (102129386).

142440214 is a wasteful number, since it uses less digits than its factorization.

142440214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16107.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 142440214 is about 11934.8319636265. The cubic root of 142440214 is about 522.2489063138.

Adding to 142440214 its reverse (412044241), we get a palindrome (554484455).

The spelling of 142440214 in words is "one hundred forty-two million, four hundred forty thousand, two hundred fourteen".