1403421312 has 32 divisors (see below), whose sum is σ = 3727838880. Its totient is φ = 467806976.

The previous prime is 1403421307. The next prime is 1403421403. The reversal of 1403421312 is 2131243041.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1826988 + ... + 1827755.

It is an arithmetic number, because the mean of its divisors is an integer number (116494965).

Almost surely, 2^1403421312 is an apocalyptic number.

1403421312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1403421312 is an abundant number, since it is smaller than the sum of its proper divisors (2324417568).

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

1403421312 is an equidigital number, since it uses as much as digits as its factorization.

1403421312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654760 (or 3654748 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1403421312 is about 37462.2651744392. The cubic root of 1403421312 is about 1119.5994826405.

Adding to 1403421312 its reverse (2131243041), we get a palindrome (3534664353).

The spelling of 1403421312 in words is "one billion, four hundred three million, four hundred twenty-one thousand, three hundred twelve".