1394627128 has 8 divisors (see below), whose sum is σ = 2614925880. Its totient is φ = 697313560.

The previous prime is 1394627123. The next prime is 1394627131. The reversal of 1394627128 is 8217264931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394627123) 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 as a sum of consecutive naturals, namely, 87164188 + ... + 87164203.

It is an arithmetic number, because the mean of its divisors is an integer number (326865735).

Almost surely, 2^1394627128 is an apocalyptic number.

It is an amenable number.

1394627128 is a deficient number, since it is larger than the sum of its proper divisors (1220298752).

1394627128 is a wasteful number, since it uses less digits than its factorization.

1394627128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174328397 (or 174328393 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 1394627128 is about 37344.7068270726. The cubic root of 1394627128 is about 1117.2560187514.

The spelling of 1394627128 in words is "one billion, three hundred ninety-four million, six hundred twenty-seven thousand, one hundred twenty-eight".