1672340 has 12 divisors (see below), whose sum is σ = 3511956. Its totient is φ = 668928.

The previous prime is 1672339. The next prime is 1672379. The reversal of 1672340 is 432761.

It can be written as a sum of positive squares in 2 ways, for example, as 929296 + 743044 = 964^2 + 862^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41789 + ... + 41828.

It is an arithmetic number, because the mean of its divisors is an integer number (292663).

2^1672340 is an apocalyptic number.

1672340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1672340 is an abundant number, since it is smaller than the sum of its proper divisors (1839616).

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

1672340 is a wasteful number, since it uses less digits than its factorization.

1672340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83626 (or 83624 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1672340 is about 1293.1898545844. The cubic root of 1672340 is about 118.6974874004.

The spelling of 1672340 in words is "one million, six hundred seventy-two thousand, three hundred forty".