16777040 has 40 divisors (see below), whose sum is σ = 44580480. Its totient is φ = 5751936.

The previous prime is 16777027. The next prime is 16777049. The reversal of 16777040 is 4077761.

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

It is a nialpdrome in base 4, base 8 and base 16.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 16776988 and 16777006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16777049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14420 + ... + 15539.

It is an arithmetic number, because the mean of its divisors is an integer number (1114512).

Almost surely, 2^16777040 is an apocalyptic number.

16777040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16777040 is an abundant number, since it is smaller than the sum of its proper divisors (27803440).

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

16777040 is a wasteful number, since it uses less digits than its factorization.

16777040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29979 (or 29973 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 16777040 is about 4095.9785155687. The cubic root of 16777040 is about 255.9991048146. Note that the first 3 decimals are identical.

The spelling of 16777040 in words is "sixteen million, seven hundred seventy-seven thousand, forty".