1672140 has 72 divisors (see below), whose sum is σ = 5004720. Its totient is φ = 416640.

The previous prime is 1672129. The next prime is 1672199. The reversal of 1672140 is 412761.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53925 + ... + 53955.

It is an arithmetic number, because the mean of its divisors is an integer number (69510).

2^1672140 is an apocalyptic number.

1672140 is a gapful number since it is divisible by the number (10) 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 1672140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2502360).

1672140 is an abundant number, since it is smaller than the sum of its proper divisors (3332580).

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

1672140 is a wasteful number, since it uses less digits than its factorization.

1672140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1672140 is about 1293.1125241061. The cubic root of 1672140 is about 118.6927554193.

It can be divided in two parts, 16721 and 40, that added together give a palindrome (16761).

The spelling of 1672140 in words is "one million, six hundred seventy-two thousand, one hundred forty".