142004283890 has 48 divisors (see below), whose sum is σ = 314830164312. Its totient is φ = 45823228416.

The previous prime is 142004283823. The next prime is 142004283917. The reversal of 142004283890 is 98382400241.

It can be written as a sum of positive squares in 4 ways, for example, as 139878244009 + 2126039881 = 374003^2 + 46109^2 .

It is a super-2 number, since 2×142004283890² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8515337 + ... + 8531996.

Almost surely, 2^142004283890 is an apocalyptic number.

142004283890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142004283890 is an abundant number, since it is smaller than the sum of its proper divisors (172825880422).

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

142004283890 is a wasteful number, since it uses less digits than its factorization.

142004283890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17047371 (or 17047364 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 142004283890 in words is "one hundred forty-two billion, four million, two hundred eighty-three thousand, eight hundred ninety".