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1395944 = 231129547
BaseRepresentation
bin101010100110011101000
32121220212122
411110303220
5324132234
645530412
714602544
oct5246350
92556778
101395944
11873880
12573a08
1339b504
14284a24
151c892e
hex154ce8

1395944 has 32 divisors (see below), whose sum is σ = 2959200. Its totient is φ = 611520.

The previous prime is 1395943. The next prime is 1395983. The reversal of 1395944 is 4495931.

1395944 = T329 + T330 + ... + T352.

It is a super-2 number, since 2×13959442 = 3897319302272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (1395943) 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, 2279 + ... + 2825.

It is an arithmetic number, because the mean of its divisors is an integer number (92475).

21395944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1395944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1479600).

1395944 is an abundant number, since it is smaller than the sum of its proper divisors (1563256).

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

1395944 is a wasteful number, since it uses less digits than its factorization.

1395944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 589 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 1395944 is about 1181.5007405838. The cubic root of 1395944 is about 111.7607563212.

The spelling of 1395944 in words is "one million, three hundred ninety-five thousand, nine hundred forty-four".