1401301220 has 96 divisors (see below), whose sum is σ = 3372364800. Its totient is φ = 484133760.

The previous prime is 1401301217. The next prime is 1401301241. The reversal of 1401301220 is 221031041.

It is a junction number, because it is equal to n+sod(n) for n = 1401301195 and 1401301204.

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 31 ways as a sum of consecutive naturals, for example, 823931 + ... + 825629.

It is an arithmetic number, because the mean of its divisors is an integer number (35128800).

Almost surely, 2^1401301220 is an apocalyptic number.

1401301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401301220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686182400).

1401301220 is an abundant number, since it is smaller than the sum of its proper divisors (1971063580).

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

1401301220 is a wasteful number, since it uses less digits than its factorization.

1401301220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1401301220 is about 37433.9581129220. The cubic root of 1401301220 is about 1119.0354205751.

Adding to 1401301220 its reverse (221031041), we get a palindrome (1622332261).

The spelling of 1401301220 in words is "one billion, four hundred one million, three hundred one thousand, two hundred twenty".