142877390 has 16 divisors (see below), whose sum is σ = 263161008. Its totient is φ = 55821696.

The previous prime is 142877389. The next prime is 142877407. The reversal of 142877390 is 93778241.

It is a congruent number.

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, 165707 + ... + 166566.

It is an arithmetic number, because the mean of its divisors is an integer number (16447563).

Almost surely, 2^142877390 is an apocalyptic number.

142877390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142877390 is a deficient number, since it is larger than the sum of its proper divisors (120283618).

142877390 is a wasteful number, since it uses less digits than its factorization.

142877390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332323.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 142877390 is about 11953.1330620888. The cubic root of 142877390 is about 522.7826542365.

The spelling of 142877390 in words is "one hundred forty-two million, eight hundred seventy-seven thousand, three hundred ninety".