142884644 has 24 divisors (see below), whose sum is σ = 286059648. Its totient is φ = 61174080.

The previous prime is 142884629. The next prime is 142884647. The reversal of 142884644 is 446488241.

It is not an unprimeable number, because it can be changed into a prime (142884647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35057 + ... + 38919.

It is an arithmetic number, because the mean of its divisors is an integer number (11919152).

Almost surely, 2^142884644 is an apocalyptic number.

142884644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142884644 is an abundant number, since it is smaller than the sum of its proper divisors (143175004).

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

142884644 is a wasteful number, since it uses less digits than its factorization.

142884644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195 (or 5193 counting only the distinct ones).

The product of its digits is 196608, while the sum is 41.

The square root of 142884644 is about 11953.4364933269. The cubic root of 142884644 is about 522.7915014521.

The spelling of 142884644 in words is "one hundred forty-two million, eight hundred eighty-four thousand, six hundred forty-four".