142847420 has 12 divisors (see below), whose sum is σ = 299979624. Its totient is φ = 57138960.

The previous prime is 142847389. The next prime is 142847459. The reversal of 142847420 is 24748241.

142847420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 3571166 + ... + 3571205.

It is an arithmetic number, because the mean of its divisors is an integer number (24998302).

Almost surely, 2^142847420 is an apocalyptic number.

142847420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142847420 is an abundant number, since it is smaller than the sum of its proper divisors (157132204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142847420 is a wasteful number, since it uses less digits than its factorization.

142847420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7142380 (or 7142378 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 142847420 is about 11951.8793501273. The cubic root of 142847420 is about 522.7460986701.

The spelling of 142847420 in words is "one hundred forty-two million, eight hundred forty-seven thousand, four hundred twenty".