1655416 has 48 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 685440.

The previous prime is 1655393. The next prime is 1655419. The reversal of 1655416 is 6145561.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16021 + ... + 16123.

It is an arithmetic number, because the mean of its divisors is an integer number (77805).

2^1655416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1655416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867320).

1655416 is an abundant number, since it is smaller than the sum of its proper divisors (2079224).

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

1655416 is a wasteful number, since it uses less digits than its factorization.

1655416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 153 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 1655416 is about 1286.6297058595. The cubic root of 1655416 is about 118.2957247851.

The spelling of 1655416 in words is "one million, six hundred fifty-five thousand, four hundred sixteen".