1395040 has 24 divisors (see below), whose sum is σ = 3296160. Its totient is φ = 557952.

The previous prime is 1395029. The next prime is 1395047. The reversal of 1395040 is 405931.

It is a super-2 number, since 2×1395040² = 3892273203200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4200 + ... + 4519.

It is an arithmetic number, because the mean of its divisors is an integer number (137340).

2^1395040 is an apocalyptic number.

1395040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1395040 is an abundant number, since it is smaller than the sum of its proper divisors (1901120).

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

1395040 is an equidigital number, since it uses as much as digits as its factorization.

1395040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8734 (or 8726 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1395040 is about 1181.1181143307. The cubic root of 1395040 is about 111.7366260456.

The spelling of 1395040 in words is "one million, three hundred ninety-five thousand, forty".