1384469690 has 16 divisors (see below), whose sum is σ = 2502745128. Its totient is φ = 551410176.

The previous prime is 1384469689. The next prime is 1384469711. The reversal of 1384469690 is 969644831.

It can be written as a sum of positive squares in 4 ways, for example, as 605110801 + 779358889 = 24599^2 + 27917^2 .

It is a super-2 number, since 2×1384469690² = 3833512645057392200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294767 + ... + 299426.

Almost surely, 2^1384469690 is an apocalyptic number.

1384469690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1384469690 is a deficient number, since it is larger than the sum of its proper divisors (1118275438).

1384469690 is a wasteful number, since it uses less digits than its factorization.

1384469690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594433.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 1384469690 is about 37208.4626126907. The cubic root of 1384469690 is about 1114.5369832447.

The spelling of 1384469690 in words is "one billion, three hundred eighty-four million, four hundred sixty-nine thousand, six hundred ninety".