1263980630 has 32 divisors (see below), whose sum is σ = 2491492608. Its totient is φ = 457871200.

The previous prime is 1263980587. The next prime is 1263980633. The reversal of 1263980630 is 360893621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263980633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7085 + ... + 50775.

It is an arithmetic number, because the mean of its divisors is an integer number (77859144).

Almost surely, 2^1263980630 is an apocalyptic number.

1263980630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1263980630 is a deficient number, since it is larger than the sum of its proper divisors (1227511978).

1263980630 is a wasteful number, since it uses less digits than its factorization.

1263980630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43972.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 1263980630 is about 35552.5052563107. The cubic root of 1263980630 is about 1081.2185120972.

The spelling of 1263980630 in words is "one billion, two hundred sixty-three million, nine hundred eighty thousand, six hundred thirty".