1641366 has 24 divisors (see below), whose sum is σ = 3612024. Its totient is φ = 538560.

The previous prime is 1641361. The next prime is 1641373. The reversal of 1641366 is 6631461.

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 in 11 ways as a sum of consecutive naturals, for example, 526 + ... + 1886.

It is an arithmetic number, because the mean of its divisors is an integer number (150501).

2^1641366 is an apocalyptic number.

1641366 is an abundant number, since it is smaller than the sum of its proper divisors (1970658).

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

1641366 is a wasteful number, since it uses less digits than its factorization.

1641366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436 (or 1433 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1641366 is about 1281.1580698727. The cubic root of 1641366 is about 117.9601033368.

The spelling of 1641366 in words is "one million, six hundred forty-one thousand, three hundred sixty-six".