1400120432 has 20 divisors (see below), whose sum is σ = 2727726456. Its totient is φ = 696191040.

The previous prime is 1400120417. The next prime is 1400120437. The reversal of 1400120432 is 2340210041.

It is a self number, because there is not a number n which added to its sum of digits gives 1400120432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400120437) by changing a digit.

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, 238838 + ... + 244629.

Almost surely, 2^1400120432 is an apocalyptic number.

It is an amenable number.

1400120432 is a deficient number, since it is larger than the sum of its proper divisors (1327606024).

1400120432 is a wasteful number, since it uses less digits than its factorization.

1400120432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483656 (or 483650 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1400120432 is about 37418.1831734252. The cubic root of 1400120432 is about 1118.7210187680.

Adding to 1400120432 its reverse (2340210041), we get a palindrome (3740330473).

The spelling of 1400120432 in words is "one billion, four hundred million, one hundred twenty thousand, four hundred thirty-two".