2045236920 has 64 divisors (see below), whose sum is σ = 6138961920. Its totient is φ = 545107584.

The previous prime is 2045236903. The next prime is 2045236937. The reversal of 2045236920 is 296325402.

It is an interprime number because it is at equal distance from previous prime (2045236903) and next prime (2045236937).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319269 + ... + 325611.

It is an arithmetic number, because the mean of its divisors is an integer number (95921280).

Almost surely, 2^2045236920 is an apocalyptic number.

2045236920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045236920 is an abundant number, since it is smaller than the sum of its proper divisors (4093725000).

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

2045236920 is a wasteful number, since it uses less digits than its factorization.

2045236920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9044 (or 9040 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 2045236920 is about 45224.2956827412. The cubic root of 2045236920 is about 1269.3494756758.

The spelling of 2045236920 in words is "two billion, forty-five million, two hundred thirty-six thousand, nine hundred twenty".