1606940 has 12 divisors (see below), whose sum is σ = 3374616. Its totient is φ = 642768.

The previous prime is 1606921. The next prime is 1606951. The reversal of 1606940 is 496061.

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, 40154 + ... + 40193.

It is an arithmetic number, because the mean of its divisors is an integer number (281218).

2^1606940 is an apocalyptic number.

1606940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1606940 is an abundant number, since it is smaller than the sum of its proper divisors (1767676).

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

1606940 is a wasteful number, since it uses less digits than its factorization.

1606940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80356 (or 80354 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1606940 is about 1267.6513716318. The cubic root of 1606940 is about 117.1295713099.

The spelling of 1606940 in words is "one million, six hundred six thousand, nine hundred forty".