142019400 has 48 divisors (see below), whose sum is σ = 440262000. Its totient is φ = 37871680.

The previous prime is 142019399. The next prime is 142019413. The reversal of 142019400 is 4910241.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117750 + ... + 118949.

It is an arithmetic number, because the mean of its divisors is an integer number (9172125).

Almost surely, 2^142019400 is an apocalyptic number.

142019400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142019400 is an abundant number, since it is smaller than the sum of its proper divisors (298242600).

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

142019400 is a wasteful number, since it uses less digits than its factorization.

142019400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236718 (or 236709 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 142019400 is about 11917.1892659301. The cubic root of 142019400 is about 521.7341021858.

Adding to 142019400 its reverse (4910241), we get a palindrome (146929641).

The spelling of 142019400 in words is "one hundred forty-two million, nineteen thousand, four hundred".