1641974 has 8 divisors (see below), whose sum is σ = 2479728. Its totient is φ = 815400.

The previous prime is 1641971. The next prime is 1642021. The reversal of 1641974 is 4791461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 1641974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641971) 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, 2417 + ... + 3020.

It is an arithmetic number, because the mean of its divisors is an integer number (309966).

2^1641974 is an apocalyptic number.

1641974 is a deficient number, since it is larger than the sum of its proper divisors (837754).

1641974 is a wasteful number, since it uses less digits than its factorization.

1641974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590.

The product of its digits is 6048, while the sum is 32.

The square root of 1641974 is about 1281.3953332208. The cubic root of 1641974 is about 117.9746665907.

The spelling of 1641974 in words is "one million, six hundred forty-one thousand, nine hundred seventy-four".