14981940 has 36 divisors (see below), whose sum is σ = 45445764. Its totient is φ = 3995136.

The previous prime is 14981927. The next prime is 14981957. The reversal of 14981940 is 4918941.

14981940 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11249316 + 3732624 = 3354^2 + 1932^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 14981895 and 14981904.

It is a congruent number.

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, 41437 + ... + 41796.

Almost surely, 2^14981940 is an apocalyptic number.

14981940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14981940 is an abundant number, since it is smaller than the sum of its proper divisors (30463824).

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

14981940 is a wasteful number, since it uses less digits than its factorization.

14981940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83248 (or 83243 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 14981940 is about 3870.6511080179. The cubic root of 14981940 is about 246.5221903723.

The spelling of 14981940 in words is "fourteen million, nine hundred eighty-one thousand, nine hundred forty".