2045420000 has 120 divisors (see below), whose sum is σ = 5419808856. Its totient is φ = 755136000.

The previous prime is 2045419973. The next prime is 2045420029. The reversal of 2045420000 is 245402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 256067 + ... + 263933.

Almost surely, 2^2045420000 is an apocalyptic number.

2045420000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2045420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2709904428).

2045420000 is an abundant number, since it is smaller than the sum of its proper divisors (3374388856).

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

2045420000 is an equidigital number, since it uses as much as digits as its factorization.

2045420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7910 (or 7887 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2045420000 is about 45226.3197706822. The cubic root of 2045420000 is about 1269.3873499461.

Adding to 2045420000 its reverse (245402), we get a palindrome (2045665402).

The spelling of 2045420000 in words is "two billion, forty-five million, four hundred twenty thousand".