2206278460 has 12 divisors (see below), whose sum is σ = 4633184808. Its totient is φ = 882511376.

The previous prime is 2206278433. The next prime is 2206278467. The reversal of 2206278460 is 648726022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206278467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55156942 + ... + 55156981.

It is an arithmetic number, because the mean of its divisors is an integer number (386098734).

Almost surely, 2^2206278460 is an apocalyptic number.

2206278460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2206278460 is an abundant number, since it is smaller than the sum of its proper divisors (2426906348).

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

2206278460 is a wasteful number, since it uses less digits than its factorization.

2206278460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110313932 (or 110313930 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 2206278460 is about 46971.0385237542. The cubic root of 2206278460 is about 1301.8275007567.

The spelling of 2206278460 in words is "two billion, two hundred six million, two hundred seventy-eight thousand, four hundred sixty".