1264572 has 36 divisors (see below), whose sum is σ = 3317496. Its totient is φ = 421200.

The previous prime is 1264561. The next prime is 1264573. The reversal of 1264572 is 2754621.

1264572 is a `hidden beast` number, since 12 + 645 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322 + ... + 1622.

2^1264572 is an apocalyptic number.

1264572 is a gapful number since it is divisible by the number (12) 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 1264572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1658748).

1264572 is an abundant number, since it is smaller than the sum of its proper divisors (2052924).

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

1264572 is a wasteful number, since it uses less digits than its factorization.

1264572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1306 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 1264572 is about 1124.5319026155. The cubic root of 1264572 is about 108.1387106585.

The spelling of 1264572 in words is "one million, two hundred sixty-four thousand, five hundred seventy-two".