1404212393 has 16 divisors (see below), whose sum is σ = 1553366160. Its totient is φ = 1263360000.

The previous prime is 1404212387. The next prime is 1404212441. The reversal of 1404212393 is 3932124041.

It can be written as a sum of positive squares in 8 ways, for example, as 367565584 + 1036646809 = 19172^2 + 32197^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404212393 - 2⁴ = 1404212377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (1404218393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35693 + ... + 63893.

It is an arithmetic number, because the mean of its divisors is an integer number (97085385).

Almost surely, 2^1404212393 is an apocalyptic number.

It is an amenable number.

1404212393 is a deficient number, since it is larger than the sum of its proper divisors (149153767).

1404212393 is a wasteful number, since it uses less digits than its factorization.

1404212393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28348.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1404212393 is about 37472.8220581263. The cubic root of 1404212393 is about 1119.8098085316.

The spelling of 1404212393 in words is "one billion, four hundred four million, two hundred twelve thousand, three hundred ninety-three".