2245834978 has 4 divisors (see below), whose sum is σ = 3368752470. Its totient is φ = 1122917488.

The previous prime is 2245834973. The next prime is 2245835047. The reversal of 2245834978 is 8794385422.

2245834978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 1177656489 + 1068178489 = 34317^2 + 32683^2 .

It is not an unprimeable number, because it can be changed into a prime (2245834973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561458743 + ... + 561458746.

Almost surely, 2^2245834978 is an apocalyptic number.

2245834978 is a deficient number, since it is larger than the sum of its proper divisors (1122917492).

2245834978 is a wasteful number, since it uses less digits than its factorization.

2245834978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122917491.

The product of its digits is 3870720, while the sum is 52.

The square root of 2245834978 is about 47390.2413794233. The cubic root of 2245834978 is about 1309.5616461587.

The spelling of 2245834978 in words is "two billion, two hundred forty-five million, eight hundred thirty-four thousand, nine hundred seventy-eight".