1401856 has 33 divisors (see below), whose sum is σ = 2880129. Its totient is φ = 681984.

The previous prime is 1401823. The next prime is 1401857. The reversal of 1401856 is 6581041.

The square root of 1401856 is 1184.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 147456 = 1120^2 + 384^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401856.

It is not an unprimeable number, because it can be changed into a prime (1401857) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 37870 + ... + 37906.

2^1401856 is an apocalyptic number.

1401856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1401856 is the 1184-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401856

1401856 is an abundant number, since it is smaller than the sum of its proper divisors (1478273).

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

1401856 is an frugal number, since it uses more digits than its factorization.

1401856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The cubic root of 1401856 is about 111.9183077755.

Multiplying 1401856 by its sum of digits (25), we get a square (35046400 = 5920²).

Adding to 1401856 its reverse (6581041), we get a palindrome (7982897).

The spelling of 1401856 in words is "one million, four hundred one thousand, eight hundred fifty-six".