2945900 has 36 divisors (see below), whose sum is σ = 6483960. Its totient is φ = 1161600.

The previous prime is 2945869. The next prime is 2945933. The reversal of 2945900 is 95492.

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 11 ways as a sum of consecutive naturals, for example, 8735 + ... + 9065.

It is an arithmetic number, because the mean of its divisors is an integer number (180110).

2^2945900 is an apocalyptic number.

2945900 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 2945900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3241980).

2945900 is an abundant number, since it is smaller than the sum of its proper divisors (3538060).

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

2945900 is a wasteful number, since it uses less digits than its factorization.

2945900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 2945900 is about 1716.3624325882. The cubic root of 2945900 is about 143.3527405967.

The spelling of 2945900 in words is "two million, nine hundred forty-five thousand, nine hundred".