1395864 has 24 divisors (see below), whose sum is σ = 3780660. Its totient is φ = 465264.

The previous prime is 1395859. The next prime is 1395869. The reversal of 1395864 is 4685931.

It is an interprime number because it is at equal distance from previous prime (1395859) and next prime (1395869).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9622 + ... + 9765.

2^1395864 is an apocalyptic number.

It is an amenable number.

1395864 is an abundant number, since it is smaller than the sum of its proper divisors (2384796).

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

1395864 is a wasteful number, since it uses less digits than its factorization.

1395864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19399 (or 19392 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1395864 is about 1181.4668848512. The cubic root of 1395864 is about 111.7586213189.

The spelling of 1395864 in words is "one million, three hundred ninety-five thousand, eight hundred sixty-four".