1829641 has 6 divisors (see below), whose sum is σ = 2011226. Its totient is φ = 1663200.

The previous prime is 1829629. The next prime is 1829647. The reversal of 1829641 is 1469281.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1334025 + 495616 = 1155^2 + 704^2 .

It is not a de Polignac number, because 1829641 - 2⁵ = 1829609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1829647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7440 + ... + 7681.

2^1829641 is an apocalyptic number.

1829641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1829641 is a deficient number, since it is larger than the sum of its proper divisors (181585).

1829641 is a wasteful number, since it uses less digits than its factorization.

1829641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15143 (or 15132 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 1829641 is about 1352.6422291205. The cubic root of 1829641 is about 122.3081210968.

The spelling of 1829641 in words is "one million, eight hundred twenty-nine thousand, six hundred forty-one".