1264027650 has 48 divisors (see below), whose sum is σ = 3174499200. Its totient is φ = 332804160.

The previous prime is 1264027637. The next prime is 1264027691. The reversal of 1264027650 is 567204621.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41485 + ... + 65184.

It is an arithmetic number, because the mean of its divisors is an integer number (66135400).

Almost surely, 2^1264027650 is an apocalyptic number.

1264027650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264027650 is an abundant number, since it is smaller than the sum of its proper divisors (1910471550).

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

1264027650 is a wasteful number, since it uses less digits than its factorization.

1264027650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106763 (or 106758 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1264027650 is about 35553.1665256416. The cubic root of 1264027650 is about 1081.2319190178.

The spelling of 1264027650 in words is "one billion, two hundred sixty-four million, twenty-seven thousand, six hundred fifty".