1263966046 has 16 divisors (see below), whose sum is σ = 2168709120. Its totient is φ = 541222200.

The previous prime is 1263966001. The next prime is 1263966047. The reversal of 1263966046 is 6406693621.

It is a super-2 number, since 2×1263966046² = 3195220330881748232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1263965993 and 1263966011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263966047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23106 + ... + 55333.

It is an arithmetic number, because the mean of its divisors is an integer number (135544320).

Almost surely, 2^1263966046 is an apocalyptic number.

1263966046 is a deficient number, since it is larger than the sum of its proper divisors (904743074).

1263966046 is a wasteful number, since it uses less digits than its factorization.

1263966046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79599.

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 1263966046 is about 35552.3001506232. The cubic root of 1263966046 is about 1081.2143536602.

The spelling of 1263966046 in words is "one billion, two hundred sixty-three million, nine hundred sixty-six thousand, forty-six".