1384021404 has 60 divisors (see below), whose sum is σ = 3742893000. Its totient is φ = 445429152.

The previous prime is 1384021399. The next prime is 1384021421. The reversal of 1384021404 is 4041204831.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 64254 + ... + 83045.

It is an arithmetic number, because the mean of its divisors is an integer number (62381550).

Almost surely, 2^1384021404 is an apocalyptic number.

It is an amenable number.

1384021404 is an abundant number, since it is smaller than the sum of its proper divisors (2358871596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1384021404 is a wasteful number, since it uses less digits than its factorization.

1384021404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147344 (or 147333 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1384021404 is about 37202.4381459065. The cubic root of 1384021404 is about 1114.4166759854.

The spelling of 1384021404 in words is "one billion, three hundred eighty-four million, twenty-one thousand, four hundred four".