6994220 has 48 divisors (see below), whose sum is σ = 15724800. Its totient is φ = 2607360.

The previous prime is 6994219. The next prime is 6994237. The reversal of 6994220 is 224996.

It is a super-2 number, since 2×6994220² = 97838226816800, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6⁸ + 9⁶ + 9⁷ + 4³ + 2 + 2⁷ + 0 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17786 + ... + 18174.

It is an arithmetic number, because the mean of its divisors is an integer number (327600).

Almost surely, 2^6994220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6994220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7862400).

6994220 is an abundant number, since it is smaller than the sum of its proper divisors (8730580).

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

6994220 is a wasteful number, since it uses less digits than its factorization.

6994220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 6994220 is about 2644.6587681589. The cubic root of 6994220 is about 191.2404526255.

The spelling of 6994220 in words is "six million, nine hundred ninety-four thousand, two hundred twenty".