2045005340 has 48 divisors (see below), whose sum is σ = 5166336000. Its totient is φ = 664241472.

The previous prime is 2045005337. The next prime is 2045005349. The reversal of 2045005340 is 435005402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045005349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381740 + ... + 387059.

It is an arithmetic number, because the mean of its divisors is an integer number (107632000).

Almost surely, 2^2045005340 is an apocalyptic number.

2045005340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045005340 is an abundant number, since it is smaller than the sum of its proper divisors (3121330660).

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

2045005340 is a wasteful number, since it uses less digits than its factorization.

2045005340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768834 (or 768832 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 2045005340 is about 45221.7352608234. The cubic root of 2045005340 is about 1269.3015648373.

The spelling of 2045005340 in words is "two billion, forty-five million, five thousand, three hundred forty".