1394819220 has 24 divisors (see below), whose sum is σ = 3905493984. Its totient is φ = 371951776.

The previous prime is 1394819219. The next prime is 1394819227. The reversal of 1394819220 is 229184931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394819227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11623434 + ... + 11623553.

It is an arithmetic number, because the mean of its divisors is an integer number (162728916).

Almost surely, 2^1394819220 is an apocalyptic number.

1394819220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1394819220 is an abundant number, since it is smaller than the sum of its proper divisors (2510674764).

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

1394819220 is a wasteful number, since it uses less digits than its factorization.

1394819220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23246999 (or 23246997 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1394819220 is about 37347.2786157171. The cubic root of 1394819220 is about 1117.3073122922.

The spelling of 1394819220 in words is "one billion, three hundred ninety-four million, eight hundred nineteen thousand, two hundred twenty".