1071456 has 24 divisors (see below), whose sum is σ = 2812824. Its totient is φ = 357120.

The previous prime is 1071451. The next prime is 1071457. The reversal of 1071456 is 6541701.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1071456² = 2296035919872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071451) 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 3 ways as a sum of consecutive naturals, for example, 5485 + ... + 5676.

It is an arithmetic number, because the mean of its divisors is an integer number (117201).

2^1071456 is an apocalyptic number.

1071456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1071456 is an abundant number, since it is smaller than the sum of its proper divisors (1741368).

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

1071456 is a wasteful number, since it uses less digits than its factorization.

1071456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174 (or 11166 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1071456 is about 1035.1115881875. Note that the first 3 decimals coincide. The cubic root of 1071456 is about 102.3272839873.

1071456 divided by its sum of digits (24) gives a palindrome (44644).

The spelling of 1071456 in words is "one million, seventy-one thousand, four hundred fifty-six".