1401334421 has 8 divisors (see below), whose sum is σ = 1412019000. Its totient is φ = 1390667200.

The previous prime is 1401334397. The next prime is 1401334423. The reversal of 1401334421 is 1244331041.

It can be written as a sum of positive squares in 4 ways, for example, as 40462321 + 1360872100 = 6361^2 + 36890^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1401334421 - 2²² = 1397140117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401334423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190235 + ... + 197463.

It is an arithmetic number, because the mean of its divisors is an integer number (176502375).

Almost surely, 2^1401334421 is an apocalyptic number.

It is an amenable number.

1401334421 is a deficient number, since it is larger than the sum of its proper divisors (10684579).

1401334421 is a wasteful number, since it uses less digits than its factorization.

1401334421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8679.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1401334421 is about 37434.4015712820. The cubic root of 1401334421 is about 1119.0442582661.

Adding to 1401334421 its reverse (1244331041), we get a palindrome (2645665462).

The spelling of 1401334421 in words is "one billion, four hundred one million, three hundred thirty-four thousand, four hundred twenty-one".