142449968 has 20 divisors (see below), whose sum is σ = 276250920. Its totient is φ = 71159424.

The previous prime is 142449917. The next prime is 142449977. The reversal of 142449968 is 869944241.

142449968 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17171 + ... + 24077.

It is an arithmetic number, because the mean of its divisors is an integer number (13812546).

Almost surely, 2^142449968 is an apocalyptic number.

It is an amenable number.

142449968 is a deficient number, since it is larger than the sum of its proper divisors (133800952).

142449968 is a wasteful number, since it uses less digits than its factorization.

142449968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8204 (or 8198 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 142449968 is about 11935.2405924640. The cubic root of 142449968 is about 522.2608268696.

The spelling of 142449968 in words is "one hundred forty-two million, four hundred forty-nine thousand, nine hundred sixty-eight".