142233778 has 16 divisors (see below), whose sum is σ = 218907360. Its totient is φ = 69286336.

The previous prime is 142233731. The next prime is 142233787. The reversal of 142233778 is 877332241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8001 + ... + 18667.

It is an arithmetic number, because the mean of its divisors is an integer number (13681710).

Almost surely, 2^142233778 is an apocalyptic number.

142233778 is a deficient number, since it is larger than the sum of its proper divisors (76673582).

142233778 is a wasteful number, since it uses less digits than its factorization.

142233778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10841.

The product of its digits is 56448, while the sum is 37.

The square root of 142233778 is about 11926.1803608699. The cubic root of 142233778 is about 521.9964890669.

The spelling of 142233778 in words is "one hundred forty-two million, two hundred thirty-three thousand, seven hundred seventy-eight".