2210394420 has 240 divisors, whose sum is σ = 7547379840. Its totient is φ = 538285824.

The previous prime is 2210394409. The next prime is 2210394437. The reversal of 2210394420 is 244930122.

2210394420 is a `hidden beast` number, since 2 + 210 + 3 + 9 + 442 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2168671 + ... + 2169689.

It is an arithmetic number, because the mean of its divisors is an integer number (31447416).

Almost surely, 2^2210394420 is an apocalyptic number.

2210394420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2210394420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3773689920).

2210394420 is an abundant number, since it is smaller than the sum of its proper divisors (5336985420).

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

2210394420 is a wasteful number, since it uses less digits than its factorization.

2210394420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2210394420 is about 47014.8319150457. The cubic root of 2210394420 is about 1302.6365466071.

The spelling of 2210394420 in words is "two billion, two hundred ten million, three hundred ninety-four thousand, four hundred twenty".