143884890 has 32 divisors (see below), whose sum is σ = 383693760. Its totient is φ = 38369232.

The previous prime is 143884879. The next prime is 143884963. The reversal of 143884890 is 98488341.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266184 + ... + 266723.

It is an arithmetic number, because the mean of its divisors is an integer number (11990430).

Almost surely, 2^143884890 is an apocalyptic number.

143884890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143884890 is an abundant number, since it is smaller than the sum of its proper divisors (239808870).

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

143884890 is a wasteful number, since it uses less digits than its factorization.

143884890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532923 (or 532917 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 143884890 is about 11995.2027911161. The cubic root of 143884890 is about 524.0085779339.

The spelling of 143884890 in words is "one hundred forty-three million, eight hundred eighty-four thousand, eight hundred ninety".