2045700 has 54 divisors (see below), whose sum is σ = 6414954. Its totient is φ = 545280.

The previous prime is 2045699. The next prime is 2045713. The reversal of 2045700 is 75402.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 427716 + 1617984 = 654^2 + 1272^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 237 + ... + 2036.

2^2045700 is an apocalyptic number.

2045700 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 2045700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3207477).

2045700 is an abundant number, since it is smaller than the sum of its proper divisors (4369254).

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

2045700 is a wasteful number, since it uses less digits than its factorization.

2045700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293 (or 2283 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 2045700 is about 1430.2796929272. The cubic root of 2045700 is about 126.9445269956.

The spelling of 2045700 in words is "two million, forty-five thousand, seven hundred".