142649568 has 144 divisors (see below), whose sum is σ = 432432000. Its totient is φ = 44478720.

The previous prime is 142649543. The next prime is 142649609. The reversal of 142649568 is 865946241.

142649568 is a `hidden beast` number, since 1 + 42 + 6 + 49 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 716733 + ... + 716931.

It is an arithmetic number, because the mean of its divisors is an integer number (3003000).

Almost surely, 2^142649568 is an apocalyptic number.

142649568 is a gapful number since it is divisible by the number (18) 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 142649568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216216000).

142649568 is an abundant number, since it is smaller than the sum of its proper divisors (289782432).

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

142649568 is a wasteful number, since it uses less digits than its factorization.

142649568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 354 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 142649568 is about 11943.5994574500. The cubic root of 142649568 is about 522.5046425570.

It can be divided in two parts, 14264 and 9568, that added together give a palindrome (23832).

The spelling of 142649568 in words is "one hundred forty-two million, six hundred forty-nine thousand, five hundred sixty-eight".