1264485090 has 96 divisors (see below), whose sum is σ = 3413729088. Its totient is φ = 299376000.

The previous prime is 1264485067. The next prime is 1264485091. The reversal of 1264485090 is 905844621.

It is not an unprimeable number, because it can be changed into a prime (1264485091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152040 + ... + 160140.

It is an arithmetic number, because the mean of its divisors is an integer number (35559678).

Almost surely, 2^1264485090 is an apocalyptic number.

1264485090 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 1264485090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706864544).

1264485090 is an abundant number, since it is smaller than the sum of its proper divisors (2149243998).

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

1264485090 is a wasteful number, since it uses less digits than its factorization.

1264485090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8176 (or 8165 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 1264485090 is about 35559.5991259744. The cubic root of 1264485090 is about 1081.3623325884.

The spelling of 1264485090 in words is "one billion, two hundred sixty-four million, four hundred eighty-five thousand, ninety".