1401006 has 16 divisors (see below), whose sum is σ = 2830464. Its totient is φ = 462264.

The previous prime is 1400989. The next prime is 1401007. The reversal of 1401006 is 6001041.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1400982 and 1401000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (176904).

2^1401006 is an apocalyptic number.

1401006 is an abundant number, since it is smaller than the sum of its proper divisors (1429458).

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

1401006 is a wasteful number, since it uses less digits than its factorization.

1401006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1401006 is about 1183.6409928690. The cubic root of 1401006 is about 111.8956830563.

Adding to 1401006 its reverse (6001041), we get a palindrome (7402047).

The spelling of 1401006 in words is "one million, four hundred one thousand, six".