14203890 has 64 divisors (see below), whose sum is σ = 39121920. Its totient is φ = 3663360.

The previous prime is 14203883. The next prime is 14203901. The reversal of 14203890 is 9830241.

It is a super-2 number, since 2×14203890² = 403500982264200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7522 + ... + 9218.

It is an arithmetic number, because the mean of its divisors is an integer number (611280).

Almost surely, 2^14203890 is an apocalyptic number.

14203890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14203890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19560960).

14203890 is an abundant number, since it is smaller than the sum of its proper divisors (24918030).

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

14203890 is a wasteful number, since it uses less digits than its factorization.

14203890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 14203890 is about 3768.8048503471. The cubic root of 14203890 is about 242.1786013935.

The spelling of 14203890 in words is "fourteen million, two hundred three thousand, eight hundred ninety".