1267246630 has 16 divisors (see below), whose sum is σ = 2456509104. Its totient is φ = 467906400.

The previous prime is 1267246621. The next prime is 1267246637. The reversal of 1267246630 is 366427621.

It is a self number, because there is not a number n which added to its sum of digits gives 1267246630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267246637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4873896 + ... + 4874155.

It is an arithmetic number, because the mean of its divisors is an integer number (153531819).

Almost surely, 2^1267246630 is an apocalyptic number.

1267246630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1267246630 is a deficient number, since it is larger than the sum of its proper divisors (1189262474).

1267246630 is a wasteful number, since it uses less digits than its factorization.

1267246630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9748071.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 1267246630 is about 35598.4076891088. The cubic root of 1267246630 is about 1082.1489647905.

It can be divided in two parts, 1267246 and 630, that added together give a square (1267876 = 1126²).

The spelling of 1267246630 in words is "one billion, two hundred sixty-seven million, two hundred forty-six thousand, six hundred thirty".