142874446 has 32 divisors (see below), whose sum is σ = 252499968. Its totient is φ = 59775840.

The previous prime is 142874437. The next prime is 142874449. The reversal of 142874446 is 644478241.

It is a junction number, because it is equal to n+sod(n) for n = 142874399 and 142874408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142874449) 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 15 ways as a sum of consecutive naturals, for example, 173191 + ... + 174013.

It is an arithmetic number, because the mean of its divisors is an integer number (7890624).

Almost surely, 2^142874446 is an apocalyptic number.

142874446 is a deficient number, since it is larger than the sum of its proper divisors (109625522).

142874446 is a wasteful number, since it uses less digits than its factorization.

142874446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456.

The product of its digits is 172032, while the sum is 40.

The square root of 142874446 is about 11953.0099138251. The cubic root of 142874446 is about 522.7790635525.

The spelling of 142874446 in words is "one hundred forty-two million, eight hundred seventy-four thousand, four hundred forty-six".