1264780 has 24 divisors (see below), whose sum is σ = 2898000. Its totient is φ = 459840.

The previous prime is 1264763. The next prime is 1264787. The reversal of 1264780 is 874621.

It is not an unprimeable number, because it can be changed into a prime (1264787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2655 + ... + 3094.

It is an arithmetic number, because the mean of its divisors is an integer number (120750).

2^1264780 is an apocalyptic number.

1264780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1264780 is an abundant number, since it is smaller than the sum of its proper divisors (1633220).

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

1264780 is a wasteful number, since it uses less digits than its factorization.

1264780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769 (or 5767 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1264780 is about 1124.6243817382. The cubic root of 1264780 is about 108.1446393096.

The spelling of 1264780 in words is "one million, two hundred sixty-four thousand, seven hundred eighty".