2905020 has 36 divisors (see below), whose sum is σ = 8812440. Its totient is φ = 774624.

The previous prime is 2904989. The next prime is 2905027. The reversal of 2905020 is 205092.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 2904984 and 2905002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7890 + ... + 8249.

It is an arithmetic number, because the mean of its divisors is an integer number (244790).

2^2905020 is an apocalyptic number.

2905020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2905020 is an abundant number, since it is smaller than the sum of its proper divisors (5907420).

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

2905020 is a wasteful number, since it uses less digits than its factorization.

2905020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16154 (or 16149 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2905020 is about 1704.4119220423. The cubic root of 2905020 is about 142.6865516096.

The spelling of 2905020 in words is "two million, nine hundred five thousand, twenty".