7406220 has 96 divisors (see below), whose sum is σ = 22534848. Its totient is φ = 1810432.

The previous prime is 7406197. The next prime is 7406233. The reversal of 7406220 is 226047.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53992 + ... + 54128.

It is an arithmetic number, because the mean of its divisors is an integer number (234738).

Almost surely, 2^7406220 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 7406220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11267424).

7406220 is an abundant number, since it is smaller than the sum of its proper divisors (15128628).

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

7406220 is a wasteful number, since it uses less digits than its factorization.

7406220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 7406220 is about 2721.4371203465. The cubic root of 7406220 is about 194.9240993233.

It can be divided in two parts, 7406 and 220, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 7406220 in words is "seven million, four hundred six thousand, two hundred twenty".