2045388 has 24 divisors (see below), whose sum is σ = 5024320. Its totient is φ = 645840.

The previous prime is 2045377. The next prime is 2045437. The reversal of 2045388 is 8835402.

It is a super-2 number, since 2×2045388² = 8367224141088, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4258 + ... + 4713.

2^2045388 is an apocalyptic number.

It is an amenable number.

2045388 is an abundant number, since it is smaller than the sum of its proper divisors (2978932).

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

2045388 is a wasteful number, since it uses less digits than its factorization.

2045388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8997 (or 8995 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2045388 is about 1430.1706191920. The cubic root of 2045388 is about 126.9380730180.

The spelling of 2045388 in words is "two million, forty-five thousand, three hundred eighty-eight".