1401183421 has 16 divisors (see below), whose sum is σ = 1551375360. Its totient is φ = 1254867120.

The previous prime is 1401183397. The next prime is 1401183439. The reversal of 1401183421 is 1243811041.

It is a cyclic number.

It is not a de Polignac number, because 1401183421 - 2⁷ = 1401183293 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 (1401183461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452946 + ... + 456028.

It is an arithmetic number, because the mean of its divisors is an integer number (96960960).

Almost surely, 2^1401183421 is an apocalyptic number.

1401183421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1401183421 is a deficient number, since it is larger than the sum of its proper divisors (150191939).

1401183421 is a wasteful number, since it uses less digits than its factorization.

1401183421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1401183421 is about 37432.3846555359. The cubic root of 1401183421 is about 1119.0040628281.

Adding to 1401183421 its reverse (1243811041), we get a palindrome (2644994462).

The spelling of 1401183421 in words is "one billion, four hundred one million, one hundred eighty-three thousand, four hundred twenty-one".