1264429760 has 112 divisors (see below), whose sum is σ = 3326952960. Its totient is φ = 453872640.

The previous prime is 1264429759. The next prime is 1264429769. The reversal of 1264429760 is 679244621.

It is not an unprimeable number, because it can be changed into a prime (1264429769) 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, 275807 + ... + 280353.

Almost surely, 2^1264429760 is an apocalyptic number.

1264429760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264429760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663476480).

1264429760 is an abundant number, since it is smaller than the sum of its proper divisors (2062523200).

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

1264429760 is a wasteful number, since it uses less digits than its factorization.

1264429760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1264429760 is about 35558.8211278158. The cubic root of 1264429760 is about 1081.3465599889.

The spelling of 1264429760 in words is "one billion, two hundred sixty-four million, four hundred twenty-nine thousand, seven hundred sixty".