1404121938 has 16 divisors (see below), whose sum is σ = 2809244160. Its totient is φ = 467873936.

The previous prime is 1404121937. The next prime is 1404121981. The reversal of 1404121938 is 8391214041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1404121899 and 1404121908.

It is not an unprimeable number, because it can be changed into a prime (1404121937) 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, 22770 + ... + 57677.

It is an arithmetic number, because the mean of its divisors is an integer number (175577760).

Almost surely, 2^1404121938 is an apocalyptic number.

1404121938 is an abundant number, since it is smaller than the sum of its proper divisors (1405122222).

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

1404121938 is a wasteful number, since it uses less digits than its factorization.

1404121938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83361.

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

The square root of 1404121938 is about 37471.6150972973. The cubic root of 1404121938 is about 1119.7857631256.

Adding to 1404121938 its reverse (8391214041), we get a palindrome (9795335979).

The spelling of 1404121938 in words is "one billion, four hundred four million, one hundred twenty-one thousand, nine hundred thirty-eight".