1396031669 has 8 divisors (see below), whose sum is σ = 1470300000. Its totient is φ = 1321842672.

The previous prime is 1396031639. The next prime is 1396031671. The reversal of 1396031669 is 9661306931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1396031669 - 2¹⁶ = 1395966133 is a prime.

It is a super-3 number, since 3×1396031669³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396031639) 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, 18182 + ... + 55880.

It is an arithmetic number, because the mean of its divisors is an integer number (183787500).

Almost surely, 2^1396031669 is an apocalyptic number.

1396031669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1396031669 is a deficient number, since it is larger than the sum of its proper divisors (74268331).

1396031669 is a wasteful number, since it uses less digits than its factorization.

1396031669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39667.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 1396031669 is about 37363.5071828114. The cubic root of 1396031669 is about 1117.6309589662.

The spelling of 1396031669 in words is "one billion, three hundred ninety-six million, thirty-one thousand, six hundred sixty-nine".