1667472 has 20 divisors (see below), whose sum is σ = 4307760. Its totient is φ = 555808.

The previous prime is 1667461. The next prime is 1667473. The reversal of 1667472 is 2747661.

It is not an unprimeable number, because it can be changed into a prime (1667473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17322 + ... + 17417.

It is an arithmetic number, because the mean of its divisors is an integer number (215388).

2^1667472 is an apocalyptic number.

1667472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1667472 is an abundant number, since it is smaller than the sum of its proper divisors (2640288).

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

1667472 is a wasteful number, since it uses less digits than its factorization.

1667472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34750 (or 34744 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 1667472 is about 1291.3063153257. The cubic root of 1667472 is about 118.5822036396.

The spelling of 1667472 in words is "one million, six hundred sixty-seven thousand, four hundred seventy-two".