1672944 has 80 divisors (see below), whose sum is σ = 5332992. Its totient is φ = 440064.

The previous prime is 1672939. The next prime is 1672949. The reversal of 1672944 is 4492761.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1672939) and next prime (1672949).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4177 + ... + 4559.

2^1672944 is an apocalyptic number.

1672944 is a gapful number since it is divisible by the number (14) 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 1672944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2666496).

1672944 is an abundant number, since it is smaller than the sum of its proper divisors (3660048).

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

1672944 is a wasteful number, since it uses less digits than its factorization.

1672944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 408 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 1672944 is about 1293.4233645640. The cubic root of 1672944 is about 118.7117756936.

The spelling of 1672944 in words is "one million, six hundred seventy-two thousand, nine hundred forty-four".