4220994 has 8 divisors (see below), whose sum is σ = 8442000. Its totient is φ = 1406996.

The previous prime is 4220987. The next prime is 4221011. The reversal of 4220994 is 4990224.

4220994 = T₉₆₄ + T₉₆₅ + ... + T₉₇₂.

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

4220994 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351744 + ... + 351755.

It is an arithmetic number, because the mean of its divisors is an integer number (1055250).

Almost surely, 2^4220994 is an apocalyptic number.

4220994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4220994 is a wasteful number, since it uses less digits than its factorization.

4220994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703504.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 4220994 is about 2054.5057799870. The cubic root of 4220994 is about 161.6112458680.

The spelling of 4220994 in words is "four million, two hundred twenty thousand, nine hundred ninety-four".