142806770 has 32 divisors (see below), whose sum is σ = 276894720. Its totient is φ = 52873920.

The previous prime is 142806767. The next prime is 142806779. The reversal of 142806770 is 77608241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 142806770.

It is not an unprimeable number, because it can be changed into a prime (142806779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2885 + ... + 17144.

It is an arithmetic number, because the mean of its divisors is an integer number (8652960).

Almost surely, 2^142806770 is an apocalyptic number.

142806770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142806770 is a deficient number, since it is larger than the sum of its proper divisors (134087950).

142806770 is a wasteful number, since it uses less digits than its factorization.

142806770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20090.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 142806770 is about 11950.1786597523. The cubic root of 142806770 is about 522.6965081235.

The spelling of 142806770 in words is "one hundred forty-two million, eight hundred six thousand, seven hundred seventy".