14905840 has 40 divisors (see below), whose sum is σ = 36167328. Its totient is φ = 5702400.

The previous prime is 14905769. The next prime is 14905841. The reversal of 14905840 is 4850941.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×14905840² = 444368132211200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14905841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211 + ... + 5890.

Almost surely, 2^14905840 is an apocalyptic number.

14905840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14905840 is an abundant number, since it is smaller than the sum of its proper divisors (21261488).

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

14905840 is a wasteful number, since it uses less digits than its factorization.

14905840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137 (or 8131 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 14905840 is about 3860.8082055445. The cubic root of 14905840 is about 246.1040826887.

The spelling of 14905840 in words is "fourteen million, nine hundred five thousand, eight hundred forty".