1264002630 has 128 divisors (see below), whose sum is σ = 3409122816. Its totient is φ = 297292800.

The previous prime is 1264002589. The next prime is 1264002647. The reversal of 1264002630 is 362004621.

1264002630 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1264002630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3987232 + ... + 3987548.

It is an arithmetic number, because the mean of its divisors is an integer number (26633772).

Almost surely, 2^1264002630 is an apocalyptic number.

1264002630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264002630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704561408).

1264002630 is an abundant number, since it is smaller than the sum of its proper divisors (2145120186).

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

1264002630 is a wasteful number, since it uses less digits than its factorization.

1264002630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1264002630 is about 35552.8146565079. The cubic root of 1264002630 is about 1081.2247850491.

The spelling of 1264002630 in words is "one billion, two hundred sixty-four million, two thousand, six hundred thirty".