3921430 has 8 divisors (see below), whose sum is σ = 7058592. Its totient is φ = 1568568.

The previous prime is 3921413. The next prime is 3921451. The reversal of 3921430 is 341293.

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

It is a super-2 number, since 2×3921430² = 30755226489800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196062 + ... + 196081.

It is an arithmetic number, because the mean of its divisors is an integer number (882324).

Almost surely, 2^3921430 is an apocalyptic number.

3921430 is a deficient number, since it is larger than the sum of its proper divisors (3137162).

3921430 is a wasteful number, since it uses less digits than its factorization.

3921430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392150.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3921430 is about 1980.2600839284. The cubic root of 3921430 is about 157.6938739606.

The spelling of 3921430 in words is "three million, nine hundred twenty-one thousand, four hundred thirty".