1394425816 has 32 divisors (see below), whose sum is σ = 3163825440. Its totient is φ = 562457088.

The previous prime is 1394425793. The next prime is 1394425817. The reversal of 1394425816 is 6185244931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394425817) 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, 731415 + ... + 733318.

It is an arithmetic number, because the mean of its divisors is an integer number (98869545).

Almost surely, 2^1394425816 is an apocalyptic number.

It is an amenable number.

1394425816 is an abundant number, since it is smaller than the sum of its proper divisors (1769399624).

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

1394425816 is a wasteful number, since it uses less digits than its factorization.

1394425816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464763 (or 1464759 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 1394425816 is about 37342.0114080642. The cubic root of 1394425816 is about 1117.2022581770.

The spelling of 1394425816 in words is "one billion, three hundred ninety-four million, four hundred twenty-five thousand, eight hundred sixteen".