1992672 has 144 divisors (see below), whose sum is σ = 6722352. Its totient is φ = 552960.

The previous prime is 1992643. The next prime is 1992673. The reversal of 1992672 is 2762991.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (13608) is a multiple of the sum of its prime factors (81).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53838 + ... + 53874.

It is an arithmetic number, because the mean of its divisors is an integer number (46683).

2^1992672 is an apocalyptic number.

1992672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1992672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3361176).

1992672 is an abundant number, since it is smaller than the sum of its proper divisors (4729680).

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

1992672 is a wasteful number, since it uses less digits than its factorization.

1992672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 70 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 1992672 is about 1411.6203455604. The cubic root of 1992672 is about 125.8380383117.

The spelling of 1992672 in words is "one million, nine hundred ninety-two thousand, six hundred seventy-two".