1641364 has 6 divisors (see below), whose sum is σ = 2872394. Its totient is φ = 820680.

The previous prime is 1641361. The next prime is 1641373. The reversal of 1641364 is 4631461.

It can be written as a sum of positive squares in only one way, i.e., 1192464 + 448900 = 1092^2 + 670^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205167 + ... + 205174.

2^1641364 is an apocalyptic number.

It is an amenable number.

1641364 is a deficient number, since it is larger than the sum of its proper divisors (1231030).

1641364 is a wasteful number, since it uses less digits than its factorization.

1641364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410345 (or 410343 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 1641364 is about 1281.1572893287. The cubic root of 1641364 is about 117.9600554255.

The spelling of 1641364 in words is "one million, six hundred forty-one thousand, three hundred sixty-four".