1264488 has 64 divisors (see below), whose sum is σ = 3456000. Its totient is φ = 384192.

The previous prime is 1264451. The next prime is 1264499. The reversal of 1264488 is 8844621.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21403 + ... + 21461.

It is an arithmetic number, because the mean of its divisors is an integer number (54000).

2^1264488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1728000).

1264488 is an abundant number, since it is smaller than the sum of its proper divisors (2191512).

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

1264488 is a wasteful number, since it uses less digits than its factorization.

1264488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 130 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 1264488 is about 1124.4945531215. The cubic root of 1264488 is about 108.1363162112.

The spelling of 1264488 in words is "one million, two hundred sixty-four thousand, four hundred eighty-eight".