1401564 has 12 divisors (see below), whose sum is σ = 3270344. Its totient is φ = 467184.

The previous prime is 1401559. The next prime is 1401571. The reversal of 1401564 is 4651041.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1401564.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58387 + ... + 58410.

2^1401564 is an apocalyptic number.

It is an amenable number.

1401564 is an abundant number, since it is smaller than the sum of its proper divisors (1868780).

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

1401564 is a wasteful number, since it uses less digits than its factorization.

1401564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116804 (or 116802 counting only the distinct ones).

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

The square root of 1401564 is about 1183.8766827673. The cubic root of 1401564 is about 111.9105365505.

The spelling of 1401564 in words is "one million, four hundred one thousand, five hundred sixty-four".