142524440 has 16 divisors (see below), whose sum is σ = 320680080. Its totient is φ = 57009760.

The previous prime is 142524439. The next prime is 142524457. The reversal of 142524440 is 44425241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781516 + ... + 1781595.

It is an arithmetic number, because the mean of its divisors is an integer number (20042505).

Almost surely, 2^142524440 is an apocalyptic number.

142524440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142524440 is an abundant number, since it is smaller than the sum of its proper divisors (178155640).

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

142524440 is a wasteful number, since it uses less digits than its factorization.

142524440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563122 (or 3563118 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 142524440 is about 11938.3600213765. The cubic root of 142524440 is about 522.3518226370.

Adding to 142524440 its reverse (44425241), we get a palindrome (186949681).

The spelling of 142524440 in words is "one hundred forty-two million, five hundred twenty-four thousand, four hundred forty".