1616992 has 48 divisors (see below), whose sum is σ = 3598560. Its totient is φ = 713856.

The previous prime is 1616983. The next prime is 1617019. The reversal of 1616992 is 2996161.

It is a super-2 number, since 2×1616992² = 5229326256128, which contains 22 as substring.

Its product of digits (5832) is a multiple of the sum of its prime factors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70293 + ... + 70315.

It is an arithmetic number, because the mean of its divisors is an integer number (74970).

2^1616992 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 1616992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1799280).

1616992 is an abundant number, since it is smaller than the sum of its proper divisors (1981568).

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

1616992 is an equidigital number, since it uses as much as digits as its factorization.

1616992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 38 counting only the distinct ones).

The product of its digits is 5832, while the sum is 34.

The square root of 1616992 is about 1271.6100031063. The cubic root of 1616992 is about 117.3732933223.

It can be divided in two parts, 16169 and 92, that added together give a palindrome (16261).

The spelling of 1616992 in words is "one million, six hundred sixteen thousand, nine hundred ninety-two".