1384021149 has 32 divisors (see below), whose sum is σ = 2169436416. Its totient is φ = 768268800.

The previous prime is 1384021141. The next prime is 1384021169. The reversal of 1384021149 is 9411204831.

It is a happy number.

It is not a de Polignac number, because 1384021149 - 2³ = 1384021141 is a prime.

It is a super-3 number, since 3×1384021149³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384021141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 727099 + ... + 728999.

It is an arithmetic number, because the mean of its divisors is an integer number (67794888).

Almost surely, 2^1384021149 is an apocalyptic number.

It is an amenable number.

1384021149 is a deficient number, since it is larger than the sum of its proper divisors (785415267).

1384021149 is a wasteful number, since it uses less digits than its factorization.

1384021149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1384021149 is about 37202.4347187116. The cubic root of 1384021149 is about 1114.4166075432.

The spelling of 1384021149 in words is "one billion, three hundred eighty-four million, twenty-one thousand, one hundred forty-nine".