1401456 has 80 divisors (see below), whose sum is σ = 4277504. Its totient is φ = 387072.

The previous prime is 1401443. The next prime is 1401461. The reversal of 1401456 is 6541041.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14400 + ... + 14496.

2^1401456 is an apocalyptic number.

1401456 is a gapful number since it is divisible by the number (16) 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 1401456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2138752).

1401456 is an abundant number, since it is smaller than the sum of its proper divisors (2876048).

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

1401456 is a wasteful number, since it uses less digits than its factorization.

1401456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1401456 is about 1183.8310690297. The cubic root of 1401456 is about 111.9076619884.

Adding to 1401456 its reverse (6541041), we get a palindrome (7942497).

It can be divided in two parts, 140 and 1456, that added together give a triangular number (1596 = T₅₆).

The spelling of 1401456 in words is "one million, four hundred one thousand, four hundred fifty-six".