1401222432 has 24 divisors (see below), whose sum is σ = 3678209136. Its totient is φ = 467074112.

The previous prime is 1401222401. The next prime is 1401222457. The reversal of 1401222432 is 2342221041.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1401222399 and 1401222408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7297938 + ... + 7298129.

It is an arithmetic number, because the mean of its divisors is an integer number (153258714).

Almost surely, 2^1401222432 is an apocalyptic number.

1401222432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1401222432 is an abundant number, since it is smaller than the sum of its proper divisors (2276986704).

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

1401222432 is a wasteful number, since it uses less digits than its factorization.

1401222432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14596080 (or 14596072 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1401222432 is about 37432.9057381337. The cubic root of 1401222432 is about 1119.0144476361.

Adding to 1401222432 its reverse (2342221041), we get a palindrome (3743443473).

The spelling of 1401222432 in words is "one billion, four hundred one million, two hundred twenty-two thousand, four hundred thirty-two".