1395066078 has 80 divisors (see below), whose sum is σ = 3623076864. Its totient is φ = 392953680.

The previous prime is 1395066059. The next prime is 1395066091. The reversal of 1395066078 is 8706605931.

It is a happy number.

1395066078 is a `hidden beast` number, since 1 + 39 + 5 + 0 + 6 + 607 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 71851 + ... + 89177.

Almost surely, 2^1395066078 is an apocalyptic number.

1395066078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1395066078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811538432).

1395066078 is an abundant number, since it is smaller than the sum of its proper divisors (2228010786).

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

1395066078 is a wasteful number, since it uses less digits than its factorization.

1395066078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17419 (or 17410 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1395066078 is about 37350.5833689382. The cubic root of 1395066078 is about 1117.3732228596.

The spelling of 1395066078 in words is "one billion, three hundred ninety-five million, sixty-six thousand, seventy-eight".