1395478626 has 16 divisors (see below), whose sum is σ = 2955131424. Its totient is φ = 437797184.

The previous prime is 1395478619. The next prime is 1395478627. The reversal of 1395478626 is 6268745931.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1395478627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6840480 + ... + 6840683.

It is an arithmetic number, because the mean of its divisors is an integer number (184695714).

Almost surely, 2^1395478626 is an apocalyptic number.

1395478626 is an abundant number, since it is smaller than the sum of its proper divisors (1559652798).

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

1395478626 is a wasteful number, since it uses less digits than its factorization.

1395478626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13681185.

The product of its digits is 2177280, while the sum is 51.

The square root of 1395478626 is about 37356.1056053759. The cubic root of 1395478626 is about 1117.4833549563.

The spelling of 1395478626 in words is "one billion, three hundred ninety-five million, four hundred seventy-eight thousand, six hundred twenty-six".