2945813240 has 32 divisors (see below), whose sum is σ = 6646888080. Its totient is φ = 1174981632.

The previous prime is 2945813237. The next prime is 2945813249. The reversal of 2945813240 is 423185492.

It is a junction number, because it is equal to n+sod(n) for n = 2945813194 and 2945813203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945813249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90194 + ... + 118433.

Almost surely, 2^2945813240 is an apocalyptic number.

2945813240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2945813240 is an abundant number, since it is smaller than the sum of its proper divisors (3701074840).

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

2945813240 is a wasteful number, since it uses less digits than its factorization.

2945813240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208991 (or 208987 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 2945813240 is about 54275.3465212337. The cubic root of 2945813240 is about 1433.5133328419.

The spelling of 2945813240 in words is "two billion, nine hundred forty-five million, eight hundred thirteen thousand, two hundred forty".