1284634 has 8 divisors (see below), whose sum is σ = 2075220. Its totient is φ = 592896.

The previous prime is 1284631. The next prime is 1284641. The reversal of 1284634 is 4364821.

It can be written as a sum of positive squares in 2 ways, for example, as 1203409 + 81225 = 1097^2 + 285^2 .

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 (1284631) 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, 24679 + ... + 24730.

2^1284634 is an apocalyptic number.

1284634 is a deficient number, since it is larger than the sum of its proper divisors (790586).

1284634 is a wasteful number, since it uses less digits than its factorization.

1284634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49424.

The product of its digits is 4608, while the sum is 28.

The square root of 1284634 is about 1133.4169576992. The cubic root of 1284634 is about 108.7075740616.

It can be divided in two parts, 12846 and 34, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 1284634 in words is "one million, two hundred eighty-four thousand, six hundred thirty-four".