4142621 has 8 divisors (see below), whose sum is σ = 4897920. Its totient is φ = 3428208.

The previous prime is 4142609. The next prime is 4142629. The reversal of 4142621 is 1262414.

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

It is a de Polignac number, because none of the positive numbers 2^k-4142621 is a prime.

It is a super-2 number, since 2×4142621² = 34322617499282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4142593 and 4142602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4142629) 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, 10001 + ... + 10406.

It is an arithmetic number, because the mean of its divisors is an integer number (612240).

Almost surely, 2^4142621 is an apocalyptic number.

It is an amenable number.

4142621 is a deficient number, since it is larger than the sum of its proper divisors (755299).

4142621 is a wasteful number, since it uses less digits than its factorization.

4142621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20443.

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

The square root of 4142621 is about 2035.3429686419. The cubic root of 4142621 is about 160.6047555827.

The spelling of 4142621 in words is "four million, one hundred forty-two thousand, six hundred twenty-one".