1399411425 has 24 divisors (see below), whose sum is σ = 2414291904. Its totient is φ = 713901760.

The previous prime is 1399411411. The next prime is 1399411463. The reversal of 1399411425 is 5241149931.

It is not a de Polignac number, because 1399411425 - 2¹² = 1399407329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403902 + ... + 407351.

It is an arithmetic number, because the mean of its divisors is an integer number (100595496).

Almost surely, 2^1399411425 is an apocalyptic number.

1399411425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1399411425 is a deficient number, since it is larger than the sum of its proper divisors (1014880479).

1399411425 is a wasteful number, since it uses less digits than its factorization.

1399411425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811289 (or 811284 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 1399411425 is about 37408.7078766428. The cubic root of 1399411425 is about 1118.5321505013.

The spelling of 1399411425 in words is "one billion, three hundred ninety-nine million, four hundred eleven thousand, four hundred twenty-five".