2141402421 has 8 divisors (see below), whose sum is σ = 2870152704. Its totient is φ = 1420126880.

The previous prime is 2141402413. The next prime is 2141402437. The reversal of 2141402421 is 1242041412.

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 2141402421 - 2³ = 2141402413 is a prime.

It is a super-2 number, since 2×2141402421² = 9171208657329322482, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141402401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868016 + ... + 1869161.

It is an arithmetic number, because the mean of its divisors is an integer number (358769088).

Almost surely, 2^2141402421 is an apocalyptic number.

It is an amenable number.

2141402421 is a deficient number, since it is larger than the sum of its proper divisors (728750283).

2141402421 is a wasteful number, since it uses less digits than its factorization.

2141402421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737371.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2141402421 is about 46275.2895290780. The cubic root of 2141402421 is about 1288.9401829536.

Adding to 2141402421 its reverse (1242041412), we get a palindrome (3383443833).

The spelling of 2141402421 in words is "two billion, one hundred forty-one million, four hundred two thousand, four hundred twenty-one".