2206390490 has 24 divisors (see below), whose sum is σ = 3986034300. Its totient is φ = 879334400.

The previous prime is 2206390481. The next prime is 2206390493. The reversal of 2206390490 is 940936022.

It can be written as a sum of positive squares in 6 ways, for example, as 1879829449 + 326561041 = 43357^2 + 18071^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2206390490.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206390493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3147140 + ... + 3147840.

Almost surely, 2^2206390490 is an apocalyptic number.

2206390490 is a deficient number, since it is larger than the sum of its proper divisors (1779643810).

2206390490 is an frugal number, since it uses more digits than its factorization.

2206390490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 2206390490 is about 46972.2310519737. The cubic root of 2206390490 is about 1301.8495350358.

The spelling of 2206390490 in words is "two billion, two hundred six million, three hundred ninety thousand, four hundred ninety".