1406016 has 42 divisors (see below), whose sum is σ = 4031742. Its totient is φ = 468480.

The previous prime is 1406011. The next prime is 1406033. The reversal of 1406016 is 6106041.

It can be written as a sum of positive squares in only one way, i.e., 921600 + 484416 = 960^2 + 696^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1406016.

It is not an unprimeable number, because it can be changed into a prime (1406011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 645 + ... + 1796.

2^1406016 is an apocalyptic number.

1406016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1406016 is an abundant number, since it is smaller than the sum of its proper divisors (2625726).

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

1406016 is a wasteful number, since it uses less digits than its factorization.

1406016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459 (or 2446 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1406016 is about 1185.7554553954. The cubic root of 1406016 is about 112.0289041046.

The spelling of 1406016 in words is "one million, four hundred six thousand, sixteen".