1401032424 has 128 divisors (see below), whose sum is σ = 4078356480. Its totient is φ = 396364800.

The previous prime is 1401032371. The next prime is 1401032429. The reversal of 1401032424 is 4242301041.

It is a self number, because there is not a number n which added to its sum of digits gives 1401032424.

It is not an unprimeable number, because it can be changed into a prime (1401032429) 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 31 ways as a sum of consecutive naturals, for example, 586737 + ... + 589119.

It is an arithmetic number, because the mean of its divisors is an integer number (31862160).

Almost surely, 2^1401032424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401032424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039178240).

1401032424 is an abundant number, since it is smaller than the sum of its proper divisors (2677324056).

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

1401032424 is a wasteful number, since it uses less digits than its factorization.

1401032424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2547 counting only the distinct ones).

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

The square root of 1401032424 is about 37430.3676711838. The cubic root of 1401032424 is about 1118.9638653008.

Adding to 1401032424 its reverse (4242301041), we get a palindrome (5643333465).

The spelling of 1401032424 in words is "one billion, four hundred one million, thirty-two thousand, four hundred twenty-four".