142514440 has 128 divisors (see below), whose sum is σ = 364953600. Its totient is φ = 49800960.

The previous prime is 142514419. The next prime is 142514443. The reversal of 142514440 is 44415241.

It is not an unprimeable number, because it can be changed into a prime (142514443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 541749 + ... + 542011.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^142514440 is an apocalyptic number.

142514440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142514440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182476800).

142514440 is an abundant number, since it is smaller than the sum of its proper divisors (222439160).

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

142514440 is a wasteful number, since it uses less digits than its factorization.

142514440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 142514440 is about 11937.9411960354. The cubic root of 142514440 is about 522.3396056905.

Adding to 142514440 its reverse (44415241), we get a palindrome (186929681).

The spelling of 142514440 in words is "one hundred forty-two million, five hundred fourteen thousand, four hundred forty".