1840634 has 8 divisors (see below), whose sum is σ = 2772468. Its totient is φ = 916480.

The previous prime is 1840633. The next prime is 1840649. The reversal of 1840634 is 4360481.

It can be written as a sum of positive squares in 2 ways, for example, as 1329409 + 511225 = 1153^2 + 715^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1840633) 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, 1277 + ... + 2304.

2^1840634 is an apocalyptic number.

1840634 is a deficient number, since it is larger than the sum of its proper divisors (931834).

1840634 is a wasteful number, since it uses less digits than its factorization.

1840634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1840634 is about 1356.6996719982. The cubic root of 1840634 is about 122.5525860582.

The spelling of 1840634 in words is "one million, eight hundred forty thousand, six hundred thirty-four".