1264740 has 48 divisors (see below), whose sum is σ = 3592512. Its totient is φ = 332416.

The previous prime is 1264733. The next prime is 1264741. The reversal of 1264740 is 474621.

It is a self number, because there is not a number n which added to its sum of digits gives 1264740.

It is not an unprimeable number, because it can be changed into a prime (1264741) 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, 6322 + ... + 6518.

It is an arithmetic number, because the mean of its divisors is an integer number (74844).

2^1264740 is an apocalyptic number.

1264740 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 1264740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1796256).

1264740 is an abundant number, since it is smaller than the sum of its proper divisors (2327772).

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

1264740 is a wasteful number, since it uses less digits than its factorization.

1264740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1264740 is about 1124.6065978821. The cubic root of 1264740 is about 108.1434992349.

The spelling of 1264740 in words is "one million, two hundred sixty-four thousand, seven hundred forty".