1401421043 has 8 divisors (see below), whose sum is σ = 1561351680. Its totient is φ = 1246911880.

The previous prime is 1401421037. The next prime is 1401421069. The reversal of 1401421043 is 3401241041.

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

It is not a de Polignac number, because 1401421043 - 2¹⁰ = 1401420019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401421033) 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, 1354823 + ... + 1355856.

It is an arithmetic number, because the mean of its divisors is an integer number (195168960).

Almost surely, 2^1401421043 is an apocalyptic number.

1401421043 is a deficient number, since it is larger than the sum of its proper divisors (159930637).

1401421043 is a wasteful number, since it uses less digits than its factorization.

1401421043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710737.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1401421043 is about 37435.5585373051. The cubic root of 1401421043 is about 1119.0673153021.

Adding to 1401421043 its reverse (3401241041), we get a palindrome (4802662084).

The spelling of 1401421043 in words is "one billion, four hundred one million, four hundred twenty-one thousand, forty-three".