1672992 has 72 divisors (see below), whose sum is σ = 4917276. Its totient is φ = 539136.

The previous prime is 1672967. The next prime is 1672999. The reversal of 1672992 is 2992761.

It can be written as a sum of positive squares in 2 ways, for example, as 1648656 + 24336 = 1284^2 + 156^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (1672999) 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, 10578 + ... + 10734.

2^1672992 is an apocalyptic number.

1672992 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 1672992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2458638).

1672992 is an abundant number, since it is smaller than the sum of its proper divisors (3244284).

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

1672992 is a wasteful number, since it uses less digits than its factorization.

1672992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 199 counting only the distinct ones).

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

The square root of 1672992 is about 1293.4419198402. The cubic root of 1672992 is about 118.7129110396.

The spelling of 1672992 in words is "one million, six hundred seventy-two thousand, nine hundred ninety-two".