1262664 has 96 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 362880.

The previous prime is 1262633. The next prime is 1262669. The reversal of 1262664 is 4662621.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

Its product of digits (3456) is a multiple of the sum of its prime divisors (108).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1262669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17749 + ... + 17819.

It is an arithmetic number, because the mean of its divisors is an integer number (40950).

2^1262664 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 1262664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1965600).

1262664 is an abundant number, since it is smaller than the sum of its proper divisors (2668536).

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

1262664 is a wasteful number, since it uses less digits than its factorization.

1262664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 108 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1262664 is about 1123.6832293845. The cubic root of 1262664 is about 108.0842963277.

The spelling of 1262664 in words is "one million, two hundred sixty-two thousand, six hundred sixty-four".