14977840 has 20 divisors (see below), whose sum is σ = 34823664. Its totient is φ = 5991104.

The previous prime is 14977829. The next prime is 14977843. The reversal of 14977840 is 4877941.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 14977793 and 14977802.

It is not an unprimeable number, because it can be changed into a prime (14977843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93532 + ... + 93691.

Almost surely, 2^14977840 is an apocalyptic number.

14977840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14977840 is an abundant number, since it is smaller than the sum of its proper divisors (19845824).

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

14977840 is a wasteful number, since it uses less digits than its factorization.

14977840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187236 (or 187230 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 14977840 is about 3870.1214451229. The cubic root of 14977840 is about 246.4997003344.

The spelling of 14977840 in words is "fourteen million, nine hundred seventy-seven thousand, eight hundred forty".