1263525846 has 64 divisors (see below), whose sum is σ = 2842076160. Its totient is φ = 371175840.

The previous prime is 1263525827. The next prime is 1263525917. The reversal of 1263525846 is 6485253621.

It is a junction number, because it is equal to n+sod(n) for n = 1263525798 and 1263525807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392881 + ... + 396083.

It is an arithmetic number, because the mean of its divisors is an integer number (44407440).

Almost surely, 2^1263525846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1263525846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1421038080).

1263525846 is an abundant number, since it is smaller than the sum of its proper divisors (1578550314).

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

1263525846 is a wasteful number, since it uses less digits than its factorization.

1263525846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401.

The product of its digits is 345600, while the sum is 42.

The square root of 1263525846 is about 35546.1087321805. The cubic root of 1263525846 is about 1081.0888213266.

The spelling of 1263525846 in words is "one billion, two hundred sixty-three million, five hundred twenty-five thousand, eight hundred forty-six".