1409864 has 32 divisors (see below), whose sum is σ = 2808000. Its totient is φ = 662592.

The previous prime is 1409851. The next prime is 1409869. The reversal of 1409864 is 4689041.

It is a self number, because there is not a number n which added to its sum of digits gives 1409864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409869) 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, 13637 + ... + 13739.

It is an arithmetic number, because the mean of its divisors is an integer number (87750).

2^1409864 is an apocalyptic number.

It is an amenable number.

1409864 is a deficient number, since it is larger than the sum of its proper divisors (1398136).

1409864 is a wasteful number, since it uses less digits than its factorization.

1409864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1409864 is about 1187.3769409922. The cubic root of 1409864 is about 112.1310116558.

The spelling of 1409864 in words is "one million, four hundred nine thousand, eight hundred sixty-four".