2445780146 has 4 divisors (see below), whose sum is σ = 3668670222. Its totient is φ = 1222890072.

The previous prime is 2445780143. The next prime is 2445780151. The reversal of 2445780146 is 6410875442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2377635121 + 68145025 = 48761^2 + 8255^2 .

It is not an unprimeable number, because it can be changed into a prime (2445780143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611445035 + ... + 611445038.

Almost surely, 2^2445780146 is an apocalyptic number.

2445780146 is a deficient number, since it is larger than the sum of its proper divisors (1222890076).

2445780146 is a wasteful number, since it uses less digits than its factorization.

2445780146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222890075.

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 2445780146 is about 49454.8293496196. The cubic root of 2445780146 is about 1347.3253208605.

The spelling of 2445780146 in words is "two billion, four hundred forty-five million, seven hundred eighty thousand, one hundred forty-six".