1263834 has 48 divisors (see below), whose sum is σ = 3223584. Its totient is φ = 352800.

The previous prime is 1263817. The next prime is 1263853. The reversal of 1263834 is 4383621.

It is a happy number.

It is a super-3 number, since 3×1263834³ = 6056076587639333112, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1263798 and 1263807.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2329 + ... + 2819.

It is an arithmetic number, because the mean of its divisors is an integer number (67158).

2^1263834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1263834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1611792).

1263834 is an abundant number, since it is smaller than the sum of its proper divisors (1959750).

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

1263834 is a wasteful number, since it uses less digits than its factorization.

1263834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 520 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1263834 is about 1124.2037181935. The cubic root of 1263834 is about 108.1176701013.

The spelling of 1263834 in words is "one million, two hundred sixty-three thousand, eight hundred thirty-four".