1401324330 has 128 divisors (see below), whose sum is σ = 3939747840. Its totient is φ = 312387840.

The previous prime is 1401324307. The next prime is 1401324343. The reversal of 1401324330 is 334231041.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1401324297 and 1401324306.

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 63 ways as a sum of consecutive naturals, for example, 1780197 + ... + 1780983.

It is an arithmetic number, because the mean of its divisors is an integer number (30779280).

Almost surely, 2^1401324330 is an apocalyptic number.

1401324330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401324330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1969873920).

1401324330 is an abundant number, since it is smaller than the sum of its proper divisors (2538423510).

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

1401324330 is a wasteful number, since it uses less digits than its factorization.

1401324330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1401324330 is about 37434.2667885989. The cubic root of 1401324330 is about 1119.0415721829.

Adding to 1401324330 its reverse (334231041), we get a palindrome (1735555371).

The spelling of 1401324330 in words is "one billion, four hundred one million, three hundred twenty-four thousand, three hundred thirty".